ERROR: test_extension_source_tmpl (__main__.EasyBlockTest)
Test type checking for 'source_tmpl' value of an extension.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Volumes/work/easybuild-framework/test/framework/easyblock.py", line 1075, in test_extension_source_tmpl
    self.assertErrorRegex(EasyBuildError, error_pattern, eb.fetch_step)
  File "/Volumes/work/easybuild-framework/easybuild/base/testing.py", line 155, in assertErrorRegex
    call(*args, **kwargs)
  File "/Volumes/work/easybuild-framework/easybuild/framework/easyblock.py", line 1972, in fetch_step
    self.exts = self.fetch_extension_sources(skip_checksums=skip_checksums)
  File "/Volumes/work/easybuild-framework/easybuild/framework/easyblock.py", line 597, in fetch_extension_sources
    src_path = self.obtain_file(src_fn, extension=True, urls=source_urls,
  File "/Volumes/work/easybuild-framework/easybuild/framework/easyblock.py", line 682, in obtain_file
    if re.match(r"^(https?|ftp)://", filename):
  File "/usr/local/Cellar/[email protected]/3.9.5/Frameworks/Python.framework/Versions/3.9/lib/python3.9/re.py", line 191, in match
    return _compile(pattern, flags).match(string)
TypeError: expected string or bytes-like object

----------------------------------------------------------------------
Ran 1 test in 0.187s

FAILED (errors=1)

$ eb foo.eb
...
ERROR: Build of /home/example/foo.eb failed (err: "build failed (first 300 chars): source_tmpl value must be a string! (found value of type 'list'): ['isodate-0.6.0-py2.py3-none-any.whl']")