Bug#972604: lmfit-py: tests fail with Python 3.9

[Michael Hudson-Doyle]

Source: lmfit-py
Version: 1.0.1-2
Severity: normal
Tags: upstream
User: debian-python at lists.debian.org
Usertags: python3.9
Forwarded-To: https://github.com/lmfit/lmfit-py/issues/674

Dear Maintainer,

I thought that updating asteval to the latest release might fix this but
it did not.

Cheers,
mwh

-- System Information:
Debian Release: bullseye/sid
  APT prefers focal-updates
  APT policy: (500, 'focal-updates'), (500, 'focal-security'), (500, 'focal'), (400, 'focal-proposed'), (100, 'focal-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.4.0-51-generic (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled