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