How to use 'python requests multipart form data' in Python

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12def encode_multipart(data, charset='utf-8'):
13 # Ported from Werkzeug testing.
14 boundary = '---------------Boundary%s' % uuid4().hex
15 body = BytesIO()
16
17 def write(string):
18 body.write(string.encode(charset))
19
20 if isinstance(data, dict):
21 data = data.items()
22
23 for key, values in data:
24 if not isinstance(values, (list, tuple)):
25 values = [values]
26 for value in values:
27 write('--%s\r\nContent-Disposition: form-data; name="%s"' %
28 (boundary, key))
29 reader = getattr(value, 'read', None)
30 if reader is not None:
31 filename = getattr(value, 'filename',
32 getattr(value, 'name', None))
33 content_type = getattr(value, 'content_type', None)
34 if content_type is None:
35 content_type = filename and \
36 mimetypes.guess_type(filename)[0] or \
37 'application/octet-stream'
38 if filename is not None:
39 write('; filename="%s"\r\n' % filename)
40 else:
41 write('\r\n')
42 write('Content-Type: %s\r\n\r\n' % content_type)
43 while 1:
44 chunk = reader(16384)
45 if not chunk:
46 break
47 body.write(chunk)
48 else:
49 if not isinstance(value, str):
50 value = str(value)
51 else:
52 value = value.encode(charset)
53 write('\r\n\r\n')
54 body.write(value)
55 write('\r\n')
56 write('--%s--\r\n' % boundary)
57
58 body.seek(0)
59 content_type = 'multipart/form-data; boundary=%s' % boundary
60 return body.read(), content_type
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