Execute block of code within a temporary directory
Change into newly created temporary directory for executing a block of code.
Upon leaving the code block the temporary directory and all its contents are removed and the original working directory is restored.
Intended as a tool to ease “integration” testing.
The package contains only two functions: in_temp_dir to be used with the with statement and within_temp_dir to decorate a function.
@within_temp_dir def f(): return os.getcwd() class TestScript(unittest.TestCase): @within_temp_dir def test_output_file_created(self): self.create_input_file() call_script('input') self.assertTrue(os.path.exists('output'))
with in_temp_dir(): with open('tempfile', 'w') as f: f.write(...) process_file('tempfile')
Similar functionality elsewhere
Similar functionality can be found at
- test.test_support.temp_cwd (http://docs.python.org/3/library/test.html#test.support.temp_cwd) in the Python distribution - temp_cwd is quite close to this module, unfortunately it is not in the standard library, but packaged together with the regression tests. temp_cwd’s source shows some special cases and runs the code in a directory that can be guessed
- tempdir (https://bitbucket.org/another_thomas/tempdir)
- tempdirs (https://github.com/thelinuxkid/tempdirs) - for creating any number of temporary directories
- path.py (https://github.com/jaraco/path.py/blob/master/path.py) - tempdir at the end of the file
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