subprocess popen + curl + binary data

Question

The following statement works as expected:

os.system("curl --data-binary \@"+input_file_path+" -o "+ file_name +" localhost:30")

But when trying it with subprocess.popen:

Popen(['curl','--data-binary','\@'+input_file_path, '-o', file_name,'localhost:30'], stdout=PIPE).communicate()[0]

Curl seems to hang up(logs into endless loop), like if the input file is not passed to it(which is mandatory for localhost:30 to function properly)...

Any ideas?

score 3 · Answer 1 · answered Jan 14 '10 at 01:08

3

how about using a library instead of calling system's curl?

answered Jan 14 '10 at 01:08

ghostdog74

327,991
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Because sometimes you do not want to wait for a response or wait at all, just fork-detach and forget. Like when logging. – rapadura Mar 13 '14 at 11:33
Another good http python library is '[requests](http://docs.python-requests.org/en/master/)' library – Mercury May 26 '16 at 11:18

score 2 · Accepted Answer · answered Jan 14 '10 at 00:45

You could try using the original string in subprocess.Popen with the additional keyword argument to Popen of shell=True:

subprocess.Popen("curl --data-binary \@"+input_file_path+" -o "+ file_name +" localhost:30",
    stdout=subprocess.PIPE,
    shell=True)

score 0 · Answer 3 · answered Nov 29 '22 at 02:34

0

How about using requests library

Python POST binary data

Or yet another

Check out this link for binary (image file) case How to download image using requests

answered Nov 29 '22 at 02:34

Kishan K

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subprocess popen + curl + binary data

3 Answers3