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May 22, 2018 08:59
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Unzip gz file if necessary
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def unzip_if_necessary(self, filename): | |
print "unzip_if_necessary: " + filename | |
f = open(filename) | |
# Read magic number (the first 2 bytes) and rewind. | |
magic_number = f.read(2) | |
f.seek(0) | |
f.close() | |
if magic_number == '\x1f\x8b': | |
print "gzip file" | |
data = '' | |
# with gzip.GzipFile(fileobj=f) as f: | |
with gzip.open(filename, 'rb') as f: | |
data = f.read() | |
print "Writing to " + filename | |
with open(filename, "w") as f: | |
f.write(data) | |
else: | |
print "csv file" | |
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