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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_version(filename):
 """Extract the package version"""

    with open(filename) as in_fh:
        for line in in_fh:
            if line.startswith('__version__'):
                return line.split('=')[1].strip()[1:-1]
    raise ValueError("Cannot extract version from %s" % filename)