Installing Pip-3.2 on Cygwin

Question

I have Python 3 installed on Cygwin. However, I am unable to install Python 3 packages via pip. Is there a way to do this?

why not? have you installed pip for this python installation? what error do you get? — mata, Sep 05 '13 at 16:37
Pip is installed, but it installs the python 2 version of the package. For example, my script that requires pyyaml returns `ImportError: No module named yaml`, even after successfully running `pip install pyyaml`. — David Y. Stephenson, Sep 05 '13 at 16:42
Then the `pip` script doesn't run with the correct python version. Try `/path/to/python3 -m pip install ...` instead. Also, check the shebang of the pip script. — mata, Sep 05 '13 at 16:58
@mata FYI, Python 2 is also installed. `usr/bin/python3 -m pip install pyyaml` returns `/usr/bin/python3: No module named pip`. Thus my original question; how does one install pip-3 on cygwin? — David Y. Stephenson, Sep 05 '13 at 17:55
`python3 -m ensurepip` and `python2 -m ensurepip`. Look to https://www.python.org/dev/peps/pep-0453/ — gavenkoa, Sep 11 '17 at 16:40

score 130 · Accepted Answer · edited Sep 22 '16 at 22:16

130

1)While installing cygwin, make sure you install the python/python-setuptools from the list. This will install "easy_install" package.

2) Type the following command:

easy_install-a.b pip

You must replace a.b with your python version which can be 2.7 or 3.4 or whatever else.

edited Sep 22 '16 at 22:16

DomainsFeatured

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answered Aug 15 '15 at 17:50

moovon

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This answer worked great for me. I had to take a couple extra steps because I work at a university: First, I navigated to my install path (c:/cygwin64/bin/). Then had auto complete help me find the easy install file named slightly differnt: easy_install 2.7.9 – Protomancer Oct 30 '15 at 18:26
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I did this to end up in a state without eggs: `easy_install-2.7 pip && pip install 'pip<8' && pip install pip --upgrade` – anthony sottile Mar 20 '16 at 04:52
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for python3, use python3 & **python3-setuptools** packages. It's obvious, but one can forget about python**3**-setuptools – simon Jun 11 '16 at 17:54
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And don't forget the version (ie -2.7). I had another python distribution on my computer, and 'easy_install' invoked that one rather than cygwin's. – jtbr Jan 28 '17 at 21:28

mata · Answer 2 · 2015-06-22T22:41:58.510

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If you have more than one python installation, then you need to install pip (and probably also setuptools) for each installation separately.
To do so, you can first download ez_setup.py and run it with python3:

/usr/bin/python3 ez_setup.py

That should install setuptools, and also create an easy_install script for your python version, e.g. /usr/bin/easy_install-3.2, which you can use to install pip:

/usr/bin/easy_install-3.2 pip

This will install pip into your python3 site packages directory, and again create a script /usr/bin/pip-3.2, which you can use to install packages for this python version.

Alternatively you can follow the install instructions from here and here.

edited Jun 22 '15 at 22:41

answered Sep 05 '13 at 19:21

mata

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Excellent! I was able to solve my cygwin issue following this answer. – Jan 21 '14 at 19:02
I am getting "OSError: [Errno 13] Permission denied" this error while installing in cygwin. I have admin rights in that machine. – arulraj.net Apr 27 '14 at 12:42
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Link to ez_setup.py is dead – spartygw May 01 '19 at 14:19

score 29 · Answer 3 · edited Jun 20 '20 at 09:12

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I think the alternative install instructions linked by mata are simplest:

To install pip, securely download get-pip.py.

Then run the following (which may require administrator access):
python get-pip.py

edited Jun 20 '20 at 09:12

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answered Jun 06 '15 at 17:03

svick

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fwiw, this seems to silently do nothing under cygwin -- not sure why :( – anthony sottile Mar 20 '16 at 03:05
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Works under Babun, on Windows 10 x64 – xizdaqrian Jul 12 '16 at 03:09

not2qubit · Answer 4 · 2018-11-15T15:50:59.707

Since OP specifically talks about Python3, I think we need to specify that just in case the user already have Python2 installed, which is very likely.

# If you don't have Python3 already, use apt-cyg:
apt-cyg install python3

# First update pip, pip2 
pip2 install --upgrade pip 

# Install pip3:
python3 -m ensurepip

# Finally update pip3:
pip3 install --upgrade pip

$ pip3 -V
pip 9.0.1 from /usr/lib/python3.4/site-packages (python 3.4)

BTW. There are several forks of apt-cyg, but the best maintained is that of kou1okada, you'll love it.

EDIT: 2018-11-15

Because I started out not using virtualenv, I recently had to refresh my Cygwin Python3 installation, and realized a few things in the process that should have been obvious, but can easily be forgotten.

When installing and using Python3 on Cygwin (and probably on most other *nix distros), only install the basic Python3 interpreter as a Cygwin package. From then on, only use the pip installer.
After you have installed or updated any python3 packages using pip, your Cygwin package manager will complain that your package is "Incomplete". That is because pip has replaced/updated the files in that package. Check with: cygcheck.exe -c |grep Incomplete.
Do not re-install those packages with Cygwin.

# cygcheck.exe -c |grep Incomplete
python3-setuptools      34.3.2-1         Incomplete

So what I did, was clear out all python3 related Cygwin packages, except the Python3 itself. Then I re-installed the only one needed: python3-setuptools.

# apt-cyg remove python3-setuptools
apt-cyg install python3-setuptools

# Fix pip3 symlink (or just pip if you don't have python2)
ln -s /usr/bin/pip3.6 /usr/bin/pip3

# That also installs the Cygwin packages:  
# python3-appdirs, python3-packaging, python3-pyparsing, python3-six

# Now, update setuptools with pip:
pip3 install -U --force-reinstall --only-binary=:all: --no-clean --no-cache-dir setuptools

# pip list |grep setuptools
setuptools          40.5.0

That should have also have re-installed all the setuptools dependencies with the latest updates.

From now on, do yourself a favor and start using a virtual environment.

is `ensurepip` necessary because of cygwin? Usually, `pip` is on board, see [here](https://docs.python.org/3/library/ensurepip.html) — Timo, Jul 10 '18 at 21:09
@Timo, for me it was, for whatever reason I was missing pip3 for python3 — Lepidopteron, Jul 15 '18 at 14:17
As long as you have `pip` installed, you can always symlink in `/usr/bin/`, but perhaps its more elegant to use the native *ensurepip* fix. IDK if I already had an old version or if it was installed along with `setuptools`, but I don't have the `ensurepip` package installed. — not2qubit, Nov 15 '18 at 15:54
+1 for recommending kou1okada's fork of apt-cyg, it's the most fully-featured and best-maintained by far, been using it for years. — Hashim Aziz, Mar 17 '20 at 16:05

score 2 · Answer 5 · answered May 10 '18 at 09:59

On windows, you can use pip to install packages. If you have multiple python installations under cygwin, give the full python path e.g. Python 2

/usr/bin/python2.7 -m pip install pyyaml

Python 3

/usr/bin/python3.6 -m pip install pyyaml

In case you dont have pip installed install it using below command

/usr/bin/python2.7 -m ensurepip

or

/usr/bin/python3.6 -m ensurepip

score 0 · Answer 6 · answered Mar 01 '18 at 15:05

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I just learned, inspired from https://www.scivision.co/install-pip-in-cygwin/ and the answer before, that instead of using pip, you just have to use pip2 for python2 or pip3 for python 3 in cygwin on windows. Wondered about this the whole day...

answered Mar 01 '18 at 15:05

DanielW

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Installing Pip-3.2 on Cygwin

6 Answers6

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