How can I use conda to install pydot?

问题

Trying to generate some PDF's of decision trees by following some of the sklearn documentation, but can't get Pydot on my machine. Is there any way to use the conda installer to install the pydot package? Based on the command line errors I'm seeing, it may be a 64bit issue. I use binstar search to find the package channel:

C:\binstar search -t conda

Which gives the recommendation of looking at the packages in detail using

binstar show j14r/pydot

Which then tells me to

conda install --channel https://conda.binstar.org/j14r pydot

But when I run the conda install command, I get the following error (same error for all the pydot packages listed):

Fetching package metadata: ...
Error: No Packages found in current win-64 channels matching: pydot
You can search for this package with 

binstar search t conda pydot

which sends me back to the beginning of this all. Any ideas? Thanks all.

回答1:

This may help for someone who is looking for For Anaconda on Windows 10 64 Bit, Environment: Windows 10 64 Bit, Python 3.5.2, Anaconda 4.2.0 (64-bit)

Download "graphviz-2.38.msi" from https://graphviz.gitlab.io/_pages/Download/Download_windows.html
Execute the "graphviz-2.38.msi" file
Add the graphviz bin folder to the PATH system environment variable (Example: "C:\Graphviz2.38\bin")
Go to Anaconda Prompt using start menu (Make sure to right click and select "Run as Administrator". We may get permission issues if Prompt as not opened as Administrator)
Execute the command: conda install graphviz
Execute the command: pip install git+https://github.com/nlhepler/pydot.git
Execute the command "conda list" and make sure pydot and graphviz modules are listed. Thanks

回答2:

I had the same question for my Anaconda3 x64 installation on Windows 8.1.

Here is what I did:

1) Installed Github for Windows https://windows.github.com/

2) Opened the Git Shell (which is a PowerShell session that allows git commands)

3) Install the pydot from https://github.com/nlhepler/pydot with this command:

./pip install git+https://github.com/nlhepler/pydot.git

4) You can check whether pydot was installed by issuing

conda list

回答3:

Try running the following:

conda install -c https://conda.binstar.org/sstromberg pydot

回答4:

New pydot link for 64-bit installer https://anaconda.org/rmg/pydot or just

conda install -c rmg pydot

回答5:

Most of the people gave great insights, here's a procedure which I find useful for myself -

assumed conf. -> Anaconda 4.4.0 or higher, Win 8+, and using anaconda prompt

Few required installations (no order necessary)
1. pip install pydot-ng
2. conda install graphviz
3. pip install graphviz
PATH setting -> Under user environment variables add C:/Anaconda/Library/bin/graphviz in PATH (not Path)
Go to C:/Anaconda/Lib/site-packages/keras/utils/
Now open vis_utils.py in an editor and change line 11 from import pydot to import pydot_ng as pydot
All set, now go to Jupyter notebook and type following commands -
import graphviz
import pydot_ng as pydot
pydot.find_graphviz()
If everything went well then you will find something similar to as shown below -
{'circo': 'C:\\Anaconda\\Library\\bin\\graphviz\\circo.exe',
'dot': 'C:\\Anaconda\\Library\\bin\\graphviz\\dot.exe',
'fdp': 'C:\\Anaconda\\Library\\bin\\graphviz\\fdp.exe',
'neato': 'C:\\Anaconda\\Library\\bin\\graphviz\\neato.exe',
'sfdp': 'C:\\Anaconda\\Library\\bin\\graphviz\\sfdp.exe',
'twopi': 'C:\\Anaconda\\Library\\bin\\graphviz\\twopi.exe'}

回答6:

Try this (from Anaconda Prompt):

conda install pydot-ng

Then, in your code:

try:
    import pydot_ng as pydot
except ImportError:
    import pydot # if someone running with old installation

More about Pydot-ng

回答7:

It looks like the j14r pydot package is built for 32-bit Windows, but I'm guessing you are using the 64-bit conda. See https://conda.binstar.org/j14r.

来源：https://stackoverflow.com/questions/26349314/how-can-i-use-conda-to-install-pydot

标签

python

Anaconda

conda

pydot