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bpo-40275: More lazy imports in test.support (GH-20131)

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Make the the following imports lazy in test.support:

* bz2
* gzip
* lzma
* resource
* zlib

The following test.support decorators now need to be called
with parenthesis:

* @support.requires_bz2
* @support.requires_gzip
* @support.requires_lzma
* @support.requires_zlib

For example, "@requires_zlib" becomes "@requires_zlib()".
This commit is contained in:
Hai Shi 2020-05-19 06:02:57 +08:00 • committed by GitHub
parent ced4e5c227
commit a3ec3ad9e2
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10 changed files with 81 additions and 77 deletions
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6
Lib/test/test_tarfile.py
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@ -57,21 +57,21 @@ class TarTest:
def mode(self):
return self.prefix + self.suffix
@support.requires_gzip
@support.requires_gzip()
class GzipTest:
tarname = gzipname
suffix = 'gz'
open = gzip.GzipFile if gzip else None
taropen = tarfile.TarFile.gzopen
@support.requires_bz2
@support.requires_bz2()
class Bz2Test:
tarname = bz2name
suffix = 'bz2'
open = bz2.BZ2File if bz2 else None
taropen = tarfile.TarFile.bz2open
@support.requires_lzma
@support.requires_lzma()
class LzmaTest:
tarname = xzname
suffix = 'xz'