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• Install Graphviz On Mac
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We list them for convenience, but disclaim responsibility for the contents of these packages. Linux We do not provide precompiled packages any more. You may find it useful to try one of the following third-party sites. available but are out of date. Windows. provides a port of Graphviz to Cygwin. Win32/COM object (dot/neato library for Visual Basic and ASP).

Mostly correct notes for building Graphviz on Windows can be found. Mac. provides both stable and development versions of Graphviz and the Mac GUI Graphviz.app.

These can be obtained via the ports “graphviz”, “graphviz-devel”, “graphviz-gui” and “graphviz-gui-devel”. has a Graphviz port. Solaris For Solaris, please use the graphviz stable releases. These are maintained by Laurent Blume / John Ellson.

Currently available packages are: graphviz Graph Visualization Tools graphvizdev Graphviz headers etc. For development graphvizdoc Graphviz documentation graphvizgd Graphviz renderers using gd graphvizgraphs Graphviz example graphs graphvizguile Graphviz language binding for guile graphvizperl Graphviz language binding for perl graphvizpython Graphviz language binding for python graphvizruby Graphviz language binding for ruby graphvizsharp Graphviz language binding for C# graphviztcl Graphviz language binding for tcl Minimally, graphviz and graphvizgd should be installed. Other Unix.

From on May 4, 2017 22:34 The graphviz dot executable is installed to /Library/bin/graphviz/ (I think, don't have a machine here to double check - but there's definitely a graphviz sub-folder). But this folder is not added to the executable search path. That means that it can not be used basically, and using the python graphviz package fails. I just manually fixed this issue at around 10 laptops in my workshop:-/ doing!set PATH=PATH;C: path to anaconda Library bin graphviz fixed it. Copied from original issue. Activate on windows should absolutely be adding Library bin to PATH. How are you accessing a command line on windows?

In what terminal? How is the initialization of the terminal being configured? If you're using the Anaconda Prompt that's a cmd.exe shell, then activate root should be called automatically for you. If you're just using plain cmd.exe, then you might have to call it yourself. I don't know what all the Anaconda installer adds to PATH by default, but I know there's a push to add even less. Adding it to the path or using the pip graphviz?

Neither of those. Adding Library bin graphviz to PATH could break Spyder and Matplotlib, and the pip graphviz packages are not compatible with the graphviz package provided by conda. To be clarify even further:. conda install graphviz installs the C graphviz executables and libraries (e.g.

The dot executable). pip install graphviz installs one of the Python bindings for Graphviz (the one used by Dask).

conda install python-graphviz installs the same package as pip install graphviz, but patched to work with conda's Graphviz C package. Requiring a specific configuration in the python graphviz means that there is a tight coupling between these packages when there shouldn't be. There's no additional configuration, you just need to run conda install python-graphviz instead of pip install graphviz (as I said above). How about networkx? That also uses the dot executable, right? And I think there's many more packages that do.

I don't know, but nobody has complained about it. We'll look into it if somebody reports an issue. If there are more packages that use dot, they need to change from subprocess.call('dot') to subprocess.call('dot', shell=True) for Windows (which is a good practice anyway because it prevents opening a cmd.exe window). Can you please reopen the issue? This doesn't really seem to be solved.

This is solved. We can't add Library bin graphviz to PATH because it would be break all packages that depend on Qt, sorry. Ok, so the problem is in not rebuilding graphviz to fit your environment. That seems a pretty solvable problem.

PRs are welcome. Graphviz is very complex package and it's build process on Windows is a mess (I've heard they are planning to move to CMake for its next version, so that would make things very easy for us). Should the change to subprocess.call go upstream in the Python graphviz library? I don't know if the author would accept it.

In any case, I really don't understand what's the problem with using conda install python-graphviz instead of pip install graphviz. This is a real instance to show people that conda is not a pip replacement.

Yes, and installing a properly built graphviz is exactly what conda can do. Whereas the Python package is pure Python and can be installed perfectly well with pip.

The problem is breaking an existing package by using a hack in conda in a different package. PR welcome is very different to 'this issue is fixed'. It's likely messy but there's a pretty clear fix, and as long as graphviz doesn't provide an executable that can be used with the stock Python package I'd consider it broken. Though really it should be considered broken as long it can not be added to 'PATH'.

I'm ok if you say that the conda repo doesn't care about providing a properly built graphviz, which means I can just give up on the main anaconda repo, and I'll open an issue on conda-forge. Sent from phone. Please excuse spelling an. Yes, and installing a properly built graphviz is exactly what conda can do. We don't have time to properly build it on Windows, sorry.

Whereas the Python package is pure Python and can be installed perfectly well with pip. We're providing the same package under the conda ecosystem. The problem is breaking an existing package by using a hack in conda in a different package. Sure, we're breaking the pip package, but we also fixed that problem in our end (which is very similar to what Debian/Fedora/Suse, etc do when they decide to modify something for internal reasons). PR welcome is very different to 'this issue is fixed'.

I meant that if you want to help us by spending your time on building Graphviz from sources on Windows, then that's very welcome. If not, we'll wait until the next Graphviz release with CMake support is available. I'm ok if you say that the conda repo doesn't care about providing a properly built graphviz, which means I can just give up on the main anaconda repo. I'm not saying that.

I'm saying that we don't have the time to properly build it right now, and that, since a better build system is on its way, it's better for us to wait for it. And I'll open an issue on conda-forge. I maintain Graphviz in conda-forge too.

In fact, they agreed with my decision of repacking its binary installer. Besides, there you'll have to contribute your time to build Graphviz on Windows too, so there's no much of a difference here or there. I'm not sure what you mean by that. They clearly serve different purposes. I'm not aware of other places where a conda package breaks a depending package if it's installed by pypi, but maybe I'm ignorant. If this is happening in other places that's pretty concerning, though.

I'm pretty sure I can still download most software and built the stock version on a debian or redhat machine without needing to modify (apart from configuration). I'm not saying that. But earlier you said This is solved. I totally appreciate the fact that you don't have time for it. But 'I don't have time to solve this', 'This is solved' and 'This is out of scope' are very different to me. Initially you said 'This is solved', now you say 'I don't have time to solve it'. But I feel you are also implying 'This is out of scope' by closing the issue and because of your remark on pip vs conda.

I'm not aware of other places where a conda package breaks a depending package if it's installed by pypi, but maybe I'm ignorant pyqt5 is another clear example. It's almost impossible for us to make it work under Anaconda. But earlier you said This is solved. Your initial issue was about adding Library bin graphviz to PATH, something I told you we can't do, and also pointed out to a simple solution: conda install python-graphviz.

That's why I consider it solved, as Wont fix if you prefer. Your second issue (building Graphviz from sources on Windows) is not the main one here. Of course that's not solved, but we hope to solve it in the future. Please open a new issue about it if you feel the need for it. Anyhow I already wasted enough time on this, this just emphasizes the need to come up with a solution for my class that doesn't use graphviz. I wasted more, I just wanted to avoid Graphviz break Spyder on Windows and ended up being the Graphviz maintainer everywhere:-) But hey, I just don't get you: what's the problem with conda install python-graphviz? This is a solution we didn't come up with lightly.

It was something agreed upon between conda-forge and Continuum after a very lengthy discussion. For the record, I needed to call graphviz executables from the command line, and dot wasn't showing in my PATH. I'm running, i.e. Cygwin, and all other CLI tools I've installed from conda can be called directly after installation from this shell. I was getting: bash: dot: command not found After some checking around, I realized they're showing up in CMD.exe fine, however! So should be fine for like 90% of Windows users.

If you're using Cygwin though, a handy way for it to show up in your PATH is the following under the root level of the same drive your conda installation is in: export PATH=(find -maxdepth 10 -name dot.exe grep -v pkgs):$PATH Which will compute to export PATH=/c/Users/path/to/Anaconda3/Library/bin/graphviz:$PATH and let you call dot, neato, etc. Directly from your Cygwin shell. Thanks for your tireless efforts with the thankless chore that is Anaconda-Graphviz-Windows integration. In light of corresponding work (e.g., ) by both you and at the, would reopening this issue be feasible? If not, I sympathize. No one likes a necrobump. In that case, would someone mind opening a new issue on the same topic?

If there are no other takers, I'll begrudgingly do it. Emphasis on begrudgingly.

Install Graphviz On Mac

What's This All About, Anyway? For those following along at home, all Graphviz packages for Anaconda currently fail to add Graphviz binaries to the%PATH% under Windows due entirely to these packages merely re bundling the stock Graphviz installer for Windows. Refactoring these packages to instead re build Graphviz against the Anaconda toolchain provided by either the default or conda-forge channel should permanently resolve this issue. That's optimism for you. So, Why Haven't You Done That Yet?

Because doing so requires a sane make process. Prior GraphViz versions only provided an autotools-based make process. While adequate ( but horrible) under POSIX-compatible platforms like macOS and Linux,. Notably, autotools fails to support the most popular Windows compiler. If you were thinking 'It's Visual Studio, isn't it?'

, you were right. This is why we can't have nice things. GraphViz 2.40.1 purports to provide a sane make process: CMake. In fact, the official Windows binaries for GraphViz 2.40.1 appear to have been built entirely with CMake rather than autotools. I'm entirely external to this debate. (Read: I regurgitate what other smarter people say.) In, confidently asserts that is the case.

If True, then Rejoice. For a resolution is surely nigh at hand! So, Why Hasn't Anyone Else Done That Yet? I don't know, actually.

Everyone was filled with righteous fury about this a year ago, yet little to no actual progress has been made on the malignant tumour – despite the newest stable release of GraphViz claiming to resolve the blocker on our end (i.e., the insane build system). My questions to and are many-fold:. What do you need from the community to get this gangrenous limb amputated? Volunteer pull requests against the? And what exactly would those pull requests entail?

Bumping the recipe to 2.40.1 and completely rewriting the build process to unconditionally leverage CMake rather than autotools under all platforms? What could be easier, surely? 😞.

Once the is sanitized, would backporting those improvements into the official Graphviz package be feasible? If so, how exactly would we get that bureaucratic ball rolling?. What would you recommend downstream packages requiring Graphviz (like, say, ) do in the meanwhile?

I can think of a few valid options:. Wait for it. This is my preferred solution, because I am grotesquely lazy.

I'm unclear what sort of timeline we're looking at here, however. Given how long this has remained unresolved, waiting for a timely resolution that may not necessarily land this year (.if ever) is not the best idea I've ever had. Switch to the in the conda-forge channel. This presumably fails for us, because we require (which plays nicely with NetworkX) rather than (which does not). If waiting fails, my miserable backup plan is to patch to:. Programmatically detect when running in a conda environment under Windows.

If so:. Programmatically query conda for the absolute path of this environment. Happily, I've already uncovered authoritative Python logic for doing so: the.

I have no idea what is or does. That somehow doesn't appear to matter. Append condaprefix Library bin graphviz to the current%PATH%. (Obviously, in a safe manner. But it's only a hack.

So safety's already out the window.) I'm leaning towards Hack it., 'cause that's just how we roll. We updated graphviz not too long ago in defaults, and at the time, I was hoping to build graphviz from source on windows. It ultimately didn't end up happening because their build system configuration really doesn't work on windows in their last stable release for unix, and that's probably why their last stable release on windows is a couple versions behind their last stable release on unix. Still, the last unix stable release was in 2016.

There's been plenty of work in the repository, and much of it on their build configuration; I don't know the details of the project and why they are cutting releases. That's the history as I remember.

The official Windows binaries for GraphViz 2.40.1 appear to have been built entirely with CMake Where are these official binaries located? Thanks for chiming in and trying to find a solution to this. My answers: What do you need from the community to get this gangrenous limb amputated? I don't work for Anaconda anymore, so I can't contribute to fix this in my work time. Last time it took me about three weeks of hard work to compile 2.38 on Linux/macOS and repackage it on Windows. If Windows compilation is on the table for 2.40, I'd expect the same time again.

Once the conda-forge Graphviz feedstock is sanitized, would backporting those improvements into the official Graphviz package be feasible? Anaconda uses conda-forge feedstocks as their upstream for conda recipes since Anaconda 5.0.

What would you recommend downstream packages requiring Graphviz (like, say, our multiphysics simulator) do in the meanwhile?. we require pydot I can help you with that.

I submitted a PR to python-graphviz to detect and use conda's Graphviz binaries, so I do could the same for pydot. Is that ok for you?

I think it's better than Hack it because it's less brittle and prone to be broken by a future update in conda packages. Does the package work? That said, I've personally contributed pull requests to both pydot and Network (on behalf of pydot)., the principal maintainer of pydot, is congenial, actively involved, and an all-around jolly good fellow.

I may be biased, Whenever someone says that, they're biased. But this sounds like a volunteer match made in GitHub heaven: we could patch it like we did with python-graphviz. 🌞 I'm happy to lend a hand with that, actually. Do you happen to have a link to the pull request that patched Windows-specific conda support into? Grepping the repository for suspected keywords (e.g., conda,.bat) yielded only.

Don't tell me. You externally patched the codebase from the recipe at installation time, didn't you? As a, I'm painfully familiar with the approach. The disadvantage, of course, is that it's fragile. Maintaining unified diffs in perpetuity against a moving target is error-prone at best. They typically have to be manually recreated on every version bump.

I hate doing that, which may explain why my overlay is bit-rotting. I suspect we can probably do better here.

Is amenable to reason. Don't quote me on that. I'm sometimes wrong about people. ( Horribly, horribly wrong.) If we open a similar issue coupled with a minimal-length pull request, I'm reasonably confident we can ram a sensible changeset into the without the need for fragile feedstock tomfoolery that no one wants to maintain. A best-of-breed solution might edit of the of the in their as follows: #FIXME: Modify this conditional. If os.name 'nt' and prog in defaultnames: if not prog.endswith('.exe'): prog += '.exe' #FIXME.to resemble this. # If this is a Graphviz executable under Windows with no filetype.

If os.name 'nt' and prog in defaultnames and not os.path.splitext(prog)1: # If this is an Anaconda-based Python interpreter, default to the batch file # wrappers specific to Anaconda Graphviz packages. See: #.

for Anaconda detection. #. for why # Anaconda Graphviz packages require batch file wrappers. If os.path.exists(os.path.join(sys.prefix, 'conda-meta')): prog += '.bat' # Else, default to the standard Windows executable filetype.

Else: prog += '.exe' Completely untested and liable to implode your fingers like meaty blood sausages across the keyboard. Otherwise, seems sane.

EDIT: In reflection, perhaps applying the above changeset as a unified diff from the is the appropriate solution after all. The advantage there is fine-grained control: when this underlying issue is eventually resolved, that patch can simply be removed from that feedstock without concern over undoing a pydot pull request and releasing a new stable release of pydot. In that case, the above changeset could be reduced to simply: #FIXME: Modify this conditional. If os.name 'nt' and prog in defaultnames: if not prog.endswith('.exe'): prog += '.exe' #FIXME.to resemble this. If os.name 'nt' and prog in defaultnames and not os.path.splitext(prog)1: prog += '.bat' Yeah.

That's probably saner. I don't work for Anaconda anymore, so I can't contribute to fix this in my work time. I sympathize with your unpaid plight. In my case, I'm simply tired of this not working. Since personal frustration chronic laziness, I might now be willing to actually do something about this.

If I do, it will only be with bared teeth and a bitter heart, of course. Last time it took me about three weeks of hard work to compile 2.38 on Linux/macOS and repackage it on Windows. If Windows compilation is on the table for 2.40, I'd expect the same time again. So, what you're saying is: 'This will never be properly resolved within the lifetime of our Universe.'

I appreciate that forward-thinking candour. Unflinching pessimism with respect to setuptools and pip is what got us this far, after all. Anaconda uses conda-forge feedstocks as their upstream for conda recipes since Anaconda 5.0. That's awfully intelligent of them. I'm all for simplifying everyone's life. (Especially mine.) I think it's better than Hack it because it's less brittle and prone to be broken by a future update in conda packages. I'd be delighted if someone(s) else would maintain my hackery on my behalf.

Please do this. Incidentally, did I mention that you and and are awesome and beautiful people? This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted.

Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows.

This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:.

Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows.

Graphviz Online

This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe.

Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted.

Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'. This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe.

Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement.

Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package.

Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows.

Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'. This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:.

Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement.

Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'.

This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement.

Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows.

This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'. This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe.

Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows.

This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'.

This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted.

Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'.

This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted. Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows.

This patch fixes with respect to this package. Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows.

Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'. This commit fundamentally refactors this recipe to comply with modern conda-forge design principles, largely inspired by the comparable 'python-graphviz' recipe. Significant improvements are as follows:. Installation via 'pip' rather than 'setuptools', improving both the portability and reliability of this recipe. Addition of 'pip' as a build-time requirement. Addition of 'graphviz' as a runtime requirement, which the prior version of this recipe erroneously omitted.

Inclusion of a new Windows-specific patch, enforcing compatibility with the 'dot.bat' workaround bundled with the conda-specific version of GraphViz under Windows. This patch fixes with respect to this package.

Inclusion of a new 'runtest.py' script, a unittest-based test suite guaranteeing the usability of this package across all supported platforms. The prior version of this recipe erroneously reported test success despite this package failing to run under Windows. Addition of new '.appveyor.yml' and '.travis.yml' configurations – judiciously copypasted from the corresponding YAML files in the conda-forge/python-graphviz-feedstock with tokens manually replaced by those listed in this feedstock's 'conda-forge.yml'.

Adding it to the path or using the pip graphviz? Neither of those.

Adding Library bin graphviz to PATH could break Spyder and Matplotlib, and the pip graphviz packages are not compatible with the graphviz package provided by conda. To be clarify even further:. conda install graphviz installs the C graphviz executables and libraries (e.g. The dot executable). pip install graphviz installs one of the Python bindings for Graphviz (the one used by Dask).

conda install python-graphviz installs the same package as pip install graphviz, but patched to work with conda's Graphviz C package. Requiring a specific configuration in the python graphviz means that there is a tight coupling between these packages when there shouldn't be. There's no additional configuration, you just need to run conda install python-graphviz instead of pip install graphviz (as I said above). How about networkx? That also uses the dot executable, right?

And I think there's many more packages that do. I don't know, but nobody has complained about it. We'll look into it if somebody reports an issue. If there are more packages that use dot, they need to change from subprocess.call('dot') to subprocess.call('dot', shell=True) for Windows (which is a good practice anyway because it prevents opening a cmd.exe window).

Can you please reopen the issue? This doesn't really seem to be solved. This is solved. We can't add Library bin graphviz to PATH because it would be break all packages that depend on Qt, sorry.

It works.installing 'conda install graphviz', 'pip install graphviz' and 'conda install python-graphviz' in Windows + Anaconda. Boy I feel bad pointing this out; but I just had this OSError: pydot failed to call GraphViz.Please install GraphViz happen. Thats me trying to save a graph from keras on OSX. The funny thing is; it used to work just fine up until recently. I tried some clueless flailing like replacing graphviz with python-graphviz, and that does not change anything. So yeah, whatever happened in the dependency chain, seems the problem just got worse. Hopefully have time tomorrow to pinpoint with which package version update things went haywire.

Ok, I thought so. I fixed this problem a couple of months ago, but (unfortunately) packages for Windows with my fix were not created (although they were created for Linux and Mac). I'll talk to about this., in the future you need to tell your students to run conda install python-graphviz instead of pip install graphviz to get these bindings, which also work with conda's Graphviz package. Sorry for Caps. THANK YOU MAN. I spent 2 days to find out what the problem was and this solved it!

Thank you so much! I didn't understand why it worked by the way.