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?

Asked By: khelll

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Answers:

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)
Answered By: Ross Rogers

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

Answered By: ghostdog74

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 By: Kishan K
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