[issue44116] The _csv module can't be garbage-collected after _csv.register_dialect is called

[Erlend E. Aasland]

Erlend E. Aasland <erlend.aasland at innova.no> added the comment:

Adding GC to _csv types:
$ cat 
import sys
import gc

for i in range(10):
    import csv
    del sys.modules['_csv']
    del sys.modules['csv']
    del csv
    gc.collect()

    print(sys.gettotalrefcount())
$ ./python.exe bug.py
73164
73164
73166
73166
73166
73166
73166
73166
73166
73166

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44116>
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