Syntax warnings while installing pasaffe in terminal

Steps to reproduce the bug:

1. Open a terminal
2. sudo apt install pasaffe
3. Look at the terminal output

/usr/lib/python3/dist-packages/pasaffe_lib/helpers.py:286: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if len(folders) is 0 or folders is None:
/usr/lib/python3/dist-packages/pasaffe_lib/readdb.py:26: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if os.name is "posix":
/usr/lib/python3/dist-packages/pasaffe_lib/readdb.py:28: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif os.name is "nt":
/usr/lib/python3/dist-packages/pasaffe_lib/readdb.py:156: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if os.name is "posix":
/usr/lib/python3/dist-packages/pasaffe_lib/readdb.py:158: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif os.name is "nt":

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: pasaffe 0.55-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3
Uname: Linux 5.4.0-9-generic x86_64
ApportVersion: 2.20.11-0ubuntu15
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 22 23:02:52 2020
InstallationDate: Installed on 2020-01-21 (1 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200117)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: pasaffe
UpgradeStatus: No upgrade log present (probably fresh install)