On debian 8, pip install certbot fails

[ian-kelling]

Following instructions here: https://certbot.eff.org/instructions?ws=other&os=pip

# /opt/certbot/bin/pip install certbot certbot
Double requirement given: certbot (already in certbot, name='certbot')
Storing debug log for failure in /root/.pip/pip.log
debbugs:/etc/apt 1 # /opt/certbot/bin/pip install certbot
Downloading/unpacking certbot
  Downloading certbot-2.8.0-py3-none-any.whl (405kB): 405kB downloaded
Downloading/unpacking configobj>=5.0.6 (from certbot)
  Downloading configobj-5.0.8-py2.py3-none-any.whl
Downloading/unpacking parsedatetime>=2.4 (from certbot)
  Downloading parsedatetime-2.6-py3-none-any.whl (42kB): 42kB downloaded
Downloading/unpacking ConfigArgParse>=1.5.3 (from certbot)
  Downloading ConfigArgParse-1.7-py3-none-any.whl
Downloading/unpacking josepy>=1.13.0 (from certbot)
  Downloading josepy-1.14.0-py3-none-any.whl
Downloading/unpacking acme>=2.8.0 (from certbot)
  Downloading acme-2.8.0-py3-none-any.whl (95kB): 95kB downloaded
Downloading/unpacking cryptography>=3.2.1 (from certbot)
  Downloading cryptography-41.0.7.tar.gz (630kB): 630kB downloaded
  Running setup.py (path:/tmp/pip-build-vqufqiwc/cryptography/setup.py) egg_info for package cryptography
    Traceback (most recent call last):
      File "<string>", line 17, in <module>
      File "/tmp/pip-build-vqufqiwc/cryptography/setup.py", line 87
        print(f"    Python: {'.'.join(str(v) for v in sys.version_info[:3])}")
                                                                            ^
    SyntaxError: invalid syntax
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 17, in <module>

  File "/tmp/pip-build-vqufqiwc/cryptography/setup.py", line 87

    print(f"    Python: {'.'.join(str(v) for v in sys.version_info[:3])}")

                                                                        ^

SyntaxError: invalid syntax

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /tmp/pip-build-vqufqiwc/cryptography
Storing debug log for failure in /root/.pip/pip.log

I understand the certbot docs say it may not work. This report may just be useful for other people to find when they have this issue.

[osirisinferi]

I don't think this is a problem with Certbot, as the error occurs with the installation of the cryptography package. While that package indeed is a dependency of Certbot, the issue you're facing is not something Certbot can fix.

That said, I didn't get any error with installing Certbot using pip just now, but I noticed your pip is using the .tar.gz source file, while my pip was using wheel package. I also did not get the same error when a) running the "invalid syntax" line mentioned in your error message and b) no error when downloading cryptography-41.0.7.tar.gz separately and running python setup.py directly.

So not sure what's going on here (what Python version are you using?), but I don't think this is a problem directly related to Certbot.