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104 lines
2.4 KiB
Python
104 lines
2.4 KiB
Python
# Copyright 2025, Kay Hayen, mailto:kay.hayen@gmail.com find license text at end of file
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from __future__ import print_function
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def localImporter1():
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import os
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return os
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def localImporter1a():
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import os as my_os_name
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return my_os_name
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def localImporter2():
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from os import path
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return path
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def localImporter2a():
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from os import path as renamed
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return renamed
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print("Direct module import", localImporter1())
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print("Direct module import using rename", localImporter1a())
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print("From module import", localImporter2())
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print("From module import using rename", localImporter2a())
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from os import * # isort:skip
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print("Star import gave us", path)
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import os.path as myname # isort:skip
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print("As import gave", myname)
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def localImportFailure():
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try:
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from os import listdir, listdir2, path
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except Exception as e:
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print("gives", type(e), repr(e))
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try:
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print(path)
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except UnboundLocalError:
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print("and path was not imported", end=" ")
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print("but listdir was", listdir)
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print("From import that fails in the middle", end=" ")
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localImportFailure()
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def nonPackageImportFailure():
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try:
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# Not allowed without being a package, should raise ValueError
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from . import whatever
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except Exception as e:
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print(type(e), repr(e))
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print("Package import fails in non-package:", end=" ")
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nonPackageImportFailure()
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def importBuiltinTupleFailure():
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try:
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value = ("something",)
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# Not allowed to not be constant string, optimization might be fooled
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# though.
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__import__(value)
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except Exception as e:
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print(type(e), repr(e))
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print("The __import__ built-in optimization can handle tuples:", end=" ")
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importBuiltinTupleFailure()
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# Python tests originally created or extracted from other peoples work. The
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# parts were too small to be protected.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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