Incorrectly marks python version when code has if statement/hasattr check

Describe the bug Vermin incorrectly marks code as requiring >= 3.6 when conditionals handles earlier python versions as well.

From Paho MQTT (client.py), the if hasattr( allows for prior versions to 3.6 as well.

        # Create SSLContext object
        if tls_version is None:
            tls_version = ssl.PROTOCOL_TLSv1
            # If the python version supports it, use highest TLS version automatically
            if hasattr(ssl, "PROTOCOL_TLS"):
                tls_version = ssl.PROTOCOL_TLS
        context = ssl.SSLContext(tls_version)

To Reproduce Run vermin on the code example, or clone paho mqtt and run it on the master branch.

Expected behavior Minimum version 3.4.

Environment (please complete the following information):

• Vermin 0.6.1
• Python 3.7.4

Other comments Excellent tool, thank you for creating it and keep up the good work! 👏

[netromdk]

Okay, one more way to exclude, @vikahl 😛 As mentioned in the Analysis Exclusions section:

import ssl
tls_version = ssl.PROTOCOL_TLSv1
if hasattr(ssl, "PROTOCOL_TLS"):  # novermin
  tls_version = ssl.PROTOCOL_TLS

[vikahl]

That’s actually perfect, great work with the new flags!