10 examples of 'python check if file is empty' in Python

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def test_check_is_file_empty_when_file_is_empty(self):
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    # Create a file for the test
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    with open('testemptyfile.txt', 'w'):
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        pass
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    self.assertTrue(check_is_file_empty('testemptyfile.txt'))
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    os.remove('testemptyfile.txt')

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def test_check_is_file_empty_when_file_doesnt_exist(self):
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    with self.assertRaisesRegex(
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            FileNotFoundError,
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            r"^Path 'file_that_doesnt_exist.txt' doesn't exist$"):
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        check_is_file_empty('file_that_doesnt_exist.txt')

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def empty(self, file):
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    pass

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def test_empty_file(self):
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    self.output_file.close()
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    self.assertFalse(self.test.check_sanity())
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    self.assertTrue(self.is_parser_clear(self.test.sanity_parser))

9
def checkFile(filename):
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	return pathlib.Path(filename).is_file()

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def file_exists(file_name):
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    return os.path.isfile(file_name)

283
def test_returns_false_if_emptynameerror_not_raised(self):
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    temp_path = self.tempdir.path
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    dir_1 = os.path.join(temp_path, 'abc', 'fig', 'one', 'two', 'three')
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    dir_2 = os.path.join(temp_path, 'abc', 'fig', 'one', 'two')
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    self.tempdir.makedir(dir_1)
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    file_1 = self.tempdir.write(
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        os.path.join(dir_1, 'my awesome cat.txt'), '')
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    f1 = File(file_1)
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    self.assertRaises(EmptyNameError, f1.move_to, dst_root_path=dir_2,
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                      group=True, by_extension=True, group_folder_name=' ')

309
def checkExists(self):
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  """
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    Checks path for existence of the file, errors if not found.
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    @ In,  None
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    @ Out, None
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  """
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  path = os.path.normpath(os.path.join(self.path,self.getFilename()))
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  if not os.path.exists(path):
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    self.raiseAnError(IOError,'File not found:',path)

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def check_file(path_file):
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    '''Check if a file exists'''
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    if not os.path.isfile(path_file):
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        raise IOError(path_file + ' file not found')

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def isLineEmpty(line):
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    return len(line.strip()) == 0