From Github, pywikibot/core has a security vulnerability:
Remediation
Upgrade requests to version 2.20.0 or later. For example:
install_requires=[ 'requests>=2.20.0' ],
or…
extra_requires=[ 'requests>=2.20.0' ],
Always verify the validity and compatibility of suggestions with your codebase.
Details
https://nvd.nist.gov/vuln/detail/CVE-2018-18074
moderate severity
Vulnerable versions: <= 2.19.1
Patched version: 2.20.0
The Requests package through 2.19.1 before 2018-09-14 for Python sends an HTTP Authorization header to an http URI upon receiving a same-hostname https-to-http redirect, which makes it easier for remote attackers to discover credentials by sniffing the network.