How to use 'running curl command in python' in Python

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def ccurl(url):
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	hdr = "Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:37.0) Gecko/20100101 Firefox/37.0"
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	content = subprocess.check_output(['curl','-L','-A',hdr,url]) 
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	if isinstance(content,bytes):
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		print("I'm byte")
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		try:
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			content = str((content).decode('utf-8'))
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		except:
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			content = str(content)
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	else:
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		print(type(content))
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		content = str(content)
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		print("I'm unicode")
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	return (content)

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def curl_command(f: flow.Flow) -> str:
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    if not hasattr(f, "request"):
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        raise exceptions.CommandError("Can't export flow with no request.")
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    data = "curl "
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    request = f.request.copy()  # type: ignore
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    request.decode(strict=False)
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    for k, v in request.headers.items(multi=True):
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        data += "-H '%s:%s' " % (k, v)
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    if request.method != "GET":
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        data += "-X %s " % request.method
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    data += "'%s'" % request.url
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    if request.content:
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        data += " --data-binary '%s'" % strutils.bytes_to_escaped_str(
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            request.content,
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            escape_single_quotes=True
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        )
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    return data