python -m pip freeze [options]
py -m pip freeze [options]
Output installed packages in requirements format.
packages are listed in a case-insensitive sorted order.
Use the order in the given requirements file and its comments when generating output. This option can be used multiple times.
If in a virtualenv that has global access, do not output globally-installed packages.
Only output packages installed in user-site.
Restrict to the specified installation path for listing packages (can be used multiple times).
Do not skip these packages in the output: wheel, setuptools, distribute, pip
Exclude editable package from output.
Exclude specified package from the output
Generate output suitable for a requirements file.
$ python -m pip freeze docutils==0.11 Jinja2==2.7.2 MarkupSafe==0.19 Pygments==1.6 Sphinx==1.2.2
C:\> py -m pip freeze docutils==0.11 Jinja2==2.7.2 MarkupSafe==0.19 Pygments==1.6 Sphinx==1.2.2
Generate a requirements file and then install from it in another environment.
env1/bin/python -m pip freeze > requirements.txt env2/bin/python -m pip install -r requirements.txt
env1\bin\python -m pip freeze > requirements.txt env2\bin\python -m pip install -r requirements.txt
Fixing “Permission denied:” errors¶
The purpose of this section of documentation is to provide practical
suggestions to users seeing a “Permission denied” error on
This error occurs, for instance, when the command is installed only for another user, and the current user doesn’t have the permission to execute the other user’s command.
To solve that issue, you can try one of the followings:
Install the command for yourself (e.g. in your home directory).
Ask the system admin to allow this command for all users.
Check and correct the PATH variable of your own environment.
Check the ACL (Access-Control List) for this command.