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-rwxr-xr-xDemo/zlib/zlibdemo.py47
1 files changed, 0 insertions, 47 deletions
diff --git a/Demo/zlib/zlibdemo.py b/Demo/zlib/zlibdemo.py
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index 40a36d4..0000000
--- a/Demo/zlib/zlibdemo.py
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/usr/bin/env python3
-
-# Takes an optional filename, defaulting to this file itself.
-# Reads the file and compresses the content using level 1 and level 9
-# compression, printing a summary of the results.
-
-import zlib, sys
-
-def main():
- if len(sys.argv) > 1:
- filename = sys.argv[1]
- else:
- filename = sys.argv[0]
- print('Reading', filename)
-
- with open(filename, 'rb') as f: # Get the data to compress
- s = f.read()
-
- # First, we'll compress the string in one step
- comptext = zlib.compress(s, 1)
- decomp = zlib.decompress(comptext)
-
- print('1-step compression: (level 1)')
- print(' Original:', len(s), 'Compressed:', len(comptext), end=' ')
- print('Uncompressed:', len(decomp))
-
- # Now, let's compress the string in stages; set chunk to work in smaller steps
-
- chunk = 256
- compressor = zlib.compressobj(9)
- decompressor = zlib.decompressobj()
- comptext = decomp = b''
- for i in range(0, len(s), chunk):
- comptext += compressor.compress(s[i:i+chunk])
- # Don't forget to call flush()!!
- comptext += compressor.flush()
-
- for i in range(0, len(comptext), chunk):
- decomp += decompressor.decompress(comptext[i:i+chunk])
- decomp += decompressor.flush()
-
- print('Progressive compression (level 9):')
- print(' Original:', len(s), 'Compressed:', len(comptext), end=' ')
- print('Uncompressed:', len(decomp))
-
-if __name__ == '__main__':
- main()