CODEWITHSUNDEEP
pythoncgi
Infinity Challenger
Infinity Challenger

Reputation: 1140

how to save a value from cgi.parse_multipart

here is my code.

query = cgi.parse_multipart(rfile, pdict)
upfilecontent = query.get('file')

here, I want to save upfilecontent[0] to a file in binary mode.

TIA

Upvotes: 0

Views: 1809

Answers (3)

martineau
martineau

Reputation: 123481

From the latest information in you question it sounds like you want to write a byte stream to a file in binary. As earlier answers have shown, this is easy, just make sure to first open the file in binary mode (the trailing 'b' in the second argument to open).

f = open("output_file_name", "wb")
f.write(upfilecontent[0])
f.close()

If that doesn't work, try printing out repr(upfilecontent[0][:64]). If the result looks like a series of hex digits without leading 0x's, then you'll need to decode it into byte values before writing.

Upvotes: 0

stderr
stderr

Reputation: 8732

def writeBinaryData(binaryData):
    f = open("data.bin", "wb")
    f.write(binaryData)

The "b" in the mode string for a file specifies that you want to read/write binary data.

However, you're example looks like you'll key_1's value is a hexadecimal string "0x330xba" that you'll need to convert to binary first.

Upvotes: 0

Karl Knechtel
Karl Knechtel

Reputation: 61615

Since the value is already a str, all you have to do is open the file in binary mode and .write() it:

with file('name.bin', 'wb') as f: # 'w' for writing, 'b' for binary
    f.write(d['key_1'])

If you wanted to re-interpret the text as actually being some kind of hex dump, or something else, then you'll have to be more specific.

Upvotes: 2

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