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https://github.com/python/cpython
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39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
# Simple Python script to download a file. Used as a fallback
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# when other more reliable methods fail.
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#
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from __future__ import print_function
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import sys
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try:
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from requests import get
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except ImportError:
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try:
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from urllib.request import urlretrieve
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USING = "urllib.request.urlretrieve"
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except ImportError:
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try:
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from urllib import urlretrieve
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USING = "urllib.retrieve"
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except ImportError:
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print("Python at", sys.executable, "is not suitable",
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"for downloading files.", file=sys.stderr)
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sys.exit(2)
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else:
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USING = "requests.get"
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def urlretrieve(url, filename):
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r = get(url, stream=True)
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r.raise_for_status()
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with open(filename, 'wb') as f:
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for chunk in r.iter_content(chunk_size=1024):
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f.write(chunk)
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return filename
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print("Usage: urlretrieve.py [url] [filename]", file=sys.stderr)
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sys.exit(1)
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URL = sys.argv[1]
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FILENAME = sys.argv[2]
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print("Downloading from", URL, "to", FILENAME, "using", USING)
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urlretrieve(URL, FILENAME)
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