Fix a misleading assertion in test_pickling_with_module_import(). Only globals...

Fix a misleading assertion in test_pickling_with_module_import(). Only globals in the module are pickled

test/test_py_codegen.py

@@ -8,14 +8,13 @@ import sys
 
 def test_pickling_with_module_import():
     cg = codegen.PythonCodeGenerator()
-    cg("import pytools.py_codegen")
+    cg("import pytools")
     cg("import math as m")
 
     import pickle
     mod = pickle.loads(pickle.dumps(cg.get_picklable_module()))
 
     assert mod.mod_globals["pytools"] is pytools
-    assert mod.mod_globals["pytools"].py_codegen is pytools.py_codegen
 
     import math
     assert mod.mod_globals["m"] is math

[Matt Wala]

Strange failure on a flake8 build:

https://gitlab.tiker.net/inducer/pytools/-/jobs/46489

    self._popen = self._Popen(self)
  File "/usr/lib/python3.5/multiprocessing/context.py", line 267, in _Popen
    return Popen(process_obj)
  File "/usr/lib/python3.5/multiprocessing/popen_fork.py", line 20, in __init__
    self._launch(process_obj)
  File "/usr/lib/python3.5/multiprocessing/popen_fork.py", line 67, in _launch
    self.pid = os.fork()
BlockingIOError: [Errno 11] Resource temporarily unavailable
ERROR: Job failed: exit status 1

[Andreas Klöckner]

?!

Yeah. No idea.