How can I install packages using pip according to the requirements txt file from a local directory

Question

Here is the problem  I have a requirements txt file that looks like  BeautifulSoup  3 2 0 Django  1 3 Fabric  1 2 0 Jinja2  2 5 5 PyYAML  3 09 Pygments  1 4 SQLAlchemy  0 7 1 South  0 7 3 amqplib  0 6 1 anyjson  0 3      I have a local archive directory containing all the packages   others  I have created a new virtualenv with bin virtualenv testing  Upon activating it  I tried to install the packages according to requirements txt from the local archive directory  source bin activate pip install -r  path to requirements txt -f file    path to archive   I got some output that seems to indicate that the installation is fine  Downloading unpacking Fabric  1 2 0  from -r    testing requirements txt  line 3     Running setup py egg info for package Fabric     warning  no previously-included files matching     found under directory  docs  build      warning  no files found matching  fabfile py  Downloading unpacking South  0 7 3  from -r    testing requirements txt  line 8     Running setup py egg info for package South       But a later check revealed none of the package is installed properly  I cannot import the package  and none is found in the site-packages directory of my virtualenv  So what went wrong

User · Answer

I work with a lot of systems that have been mucked by developers "following directions they found on the Internet". It is extremely common that your pip and your python are not looking at the same paths/site-packages. For this reason, when I encounter oddness I start by doing this:

$ python -c 'import sys; print(sys.path)'
['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu',
'/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old',
'/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages',
'/usr/lib/python2.7/dist-packages']

$ pip --version
pip 9.0.1 from /usr/local/lib/python2.7/dist-packages (python 2.7)

That is a happy system.

Below is an unhappy system. (Or at least it's a blissfully ignorant system that causes others to be unhappy.)

$ pip --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)

$ python -c 'import sys; print(sys.path)'
['', '/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python27.zip',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old',
'/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload',
'/usr/local/lib/python2.7/site-packages']

$ which pip pip2 pip3
/usr/local/bin/pip
/usr/local/bin/pip3

It is unhappy because pip is (python3.6 and) using /usr/local/lib/python3.6/site-packages while python is (python2.7 and) using /usr/local/lib/python2.7/site-packages

When I want to make sure I'm installing requirements to the right python, I do this:

$ which -a python python2 python3
/usr/local/bin/python
/usr/bin/python
/usr/local/bin/python2
/usr/local/bin/python3

$ /usr/bin/python -m pip install -r requirements.txt

You've heard, "If it ain't broke, don't try to fix it." The DevOps version of that is, "If you didn't break it and you can work around it, don't try to fix it."

User · Answer

For virtualenv to install all files in the requirements txt file   cd to the directory where requirements txt is located activate your virtualenv run   pip install -r requirements txt in your shell

User · Answer

Installing requirements txt file inside virtual env with Python  3  I had the same issue  I was trying to install the requirements txt file inside a virtual environment  I found the solution  Initially  I created my virtualenv in this way  virtualenv -p python3 myenv  Activate the environment using  source myenv bin activate  Now I installed the requirements txt file using  pip3 install -r requirements txt  Installation was successful and I was able to import the modules

User · Answer

This works for me    pip install -r requirements txt --no-index --find-links file    tmp packages  --no-index - Ignore package index  only looking at --find-links URLs instead   -f  --find-links  lt URL gt  - If a URL or path to an HTML file  then parse for links to archives  If a local path or file    URL that s a directory  then look for archives in the directory listing

User · Answer

Use  pip install -r requirements txt  For further details  please check the help option  pip install --help  We can find the option  -r  -  -r  --requirement     Install from the given requirements file  This option can be used multiple times   Further information on some commonly used pip install options  this is the help option on the pip install command    Also the above is the complete set of options  Please use pip install --help for the complete list of options

User · Answer

pip install --user -r requirements txt    OR  pip3 install --user -r requirements txt

User · Answer

I had a similar problem  I tried this      pip install -U -r requirements txt   -U   update if it had already installed  But the problem continued  I realized that some of generic libraries for development were missed      sudo apt-get install libtiff5-dev libjpeg8-dev zlib1g-dev liblcms2-dev libwebp-dev tcl8 6-dev tk8 6-dev python-tk  I don t know if this would help you

User · Answer

Often  you will want a fast install from local archives  without probing PyPI   First  download the archives that fulfill your requirements     pip install --download  lt DIR gt  -r requirements txt   Then  install using    find-links and    no-index     pip install --no-index --find-links  file     lt DIR gt  -r requirements txt

User · Answer

Try this  python -m pip install -r requirements txt

User · Answer

Short answer  pip install -r  path to requirements txt   or in another form   python -m pip install -r  path to requirements txt   Explanation  Here  -r is short form of --requirement and it asks the pip to install from the given requirements file   pip will start installation only after checking the availability of all listed items in the requirements file and it won t start installation even if one requirement is unavailable   One workaround to install the available packages is installing listed packages one by one  Use the following command for that  A red color warning will be shown to notify you about the unavailable packages   cat requirements txt   xargs -n 1 pip install   To ignore comments  lines starting with a    and blank lines  use   cat requirements txt   cut -f1 -d      sed     s   d    xargs -n 1 pip install

User · Answer

First of all  create a virtual environment  In Python 3 6 virtualenv --python  usr bin python3 6  lt path to new virtualenv  gt   In Python 2 7 virtualenv --python  usr bin python2 7  lt path to new virtualenv  gt   Then activate the environment and install all the packages available in the requirement txt file  source  lt path to new virtualenv gt  bin activate pip install -r  lt path to requirement txt gt

User · Answer

This works for everyone  pip install -r  path to requirements txt

[python] How can I install packages using pip according to the requirements.txt file from a local directory?

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