pip error (Ubuntu 20.04)

[gruessung]

Following error occurs during pip install with python2 (and python3).

alexander@tuxedo-book:~/remarkable/remarkable-assistant$ pip install -r requirements.txt
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
Defaulting to user installation because normal site-packages is not writeable
Collecting Cython==0.26.1
Downloading Cython-0.26.1-cp27-cp27mu-manylinux1_x86_64.whl (2.9 MB)
|████████████████████████████████| 2.9 MB 2.4 MB/s
Collecting Kivy>=1.10.0
Downloading Kivy-2.0.0.tar.gz (23.7 MB)
|████████████████████████████████| 23.7 MB 9.6 MB/s
Installing build dependencies ... done
Getting requirements to build wheel ... error
ERROR: Command errored out with exit status 1:
command: /usr/bin/python2 /usr/local/lib/python2.7/dist-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpDv6E8c
cwd: /tmp/pip-install-OOQ7vZ/kivy
Complete output (19 lines):
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pep517/_in_process.py", line 280, in
main()
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "/usr/local/lib/python2.7/dist-packages/pip/_vendor/pep517/_in_process.py", line 114, in get_requires_for_build_wheel
return hook(config_settings)
File "/usr/local/lib/python2.7/dist-packages/setuptools/build_meta.py", line 146, in get_requires_for_build_wheel
return self._get_build_requires(config_settings, requirements=['wheel'])
File "/usr/local/lib/python2.7/dist-packages/setuptools/build_meta.py", line 127, in _get_build_requires
self.run_setup()
File "/usr/local/lib/python2.7/dist-packages/setuptools/build_meta.py", line 243, in run_setup
self).run_setup(setup_script=setup_script)
File "/usr/local/lib/python2.7/dist-packages/setuptools/build_meta.py", line 142, in run_setup
exec(compile(code, file, 'exec'), locals())
File "setup.py", line 1053
def glob_paths(*patterns, excludes=('.pyc', )):
^
SyntaxError: invalid syntax

ERROR: Command errored out with exit status 1: /usr/bin/python2 /usr/local/lib/python2.7/dist-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmpDv6E8c Check the logs for full command output.

[folofjc]

I get the same error with Python 2.7.18

[EroticD]

Solution to this is in the very first sentence of your command output prompt.

DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.