Why Does Pip Installation Fail in Python Versions Below 3.6?

pip Installation Failure in Python

Using the following steps to deploy an application through Bitbucket CI fails to install pip in Python

script:
    - apt-get update
    - apt-get install -y python-dev
    - curl -O https://bootstrap.pypa.io/get-pip.py
    - python get-pip.py

The error encountered is:

Traceback (most recent call last):
  File "get-pip.py", line 24226, in <module>
    main()
  File "get-pip.py", line 199, in main
    bootstrap(tmpdir=tmpdir)
  File "get-pip.py", line 82, in bootstrap
    from pip._internal.cli.main import main as pip_entry_point
  File "/tmp/tmpUgc5ng/pip.zip/pip/_internal/cli/main.py", line 60
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax</module>

Cause:

Pip 21.0 onwards requires Python 3.6 or higher due to the introduction of syntax features not supported in earlier versions, including Python 2 and 3.5.

Resolution:

To install pip for Python versions

Python 2.7:

• Download pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py

• Install:

  curl -O https://bootstrap.pypa.io/pip/2.7/get-pip.py
  python get-pip.py
  python -m pip install --upgrade "pip 

Python 3.6:

• Download pip from https://bootstrap.pypa.io/pip/3.6/

Python 3.5:

• Download pip from https://bootstrap.pypa.io/pip/3.5/

Python 3.4:

• Download pip from https://bootstrap.pypa.io/pip/3.4/

• Upgrade with:

  python -m pip install --upgrade "pip 

The above is the detailed content of Why Does Pip Installation Fail in Python Versions Below 3.6?. For more information, please follow other related articles on the PHP Chinese website!