mirror of https://github.com/python/cpython.git
40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
|
# 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)
|