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File Upload Example in Python
To upload a file, the HTML form must have the enctype attribute set to multipart/form-data. The input tag with the file type creates a "Browse" button.
<html> <body> <form enctype = "multipart/form-data" action = "save_file.py" method = "post"> <p>File: <input type = "file" name = "filename" /></p> <p><input type = "submit" value = "Upload" /></p> </form> </body> </html>
Output
The result of this code is the following form −
Above example has been disabled intentionally to save people uploading file on our server, but you can try above code with your server.
Here is the script save_file.py to handle file upload −
#!/usr/bin/python
import cgi, os
import cgitb; cgitb.enable()
form = cgi.FieldStorage()
# Get filename here.
fileitem = form['filename']
# Test if the file was uploaded
if fileitem.filename:
# strip leading path from file name to avoid
# directory traversal attacks
fn = os.path.basename(fileitem.filename)
open('/tmp/' + fn, 'wb').write(fileitem.file.read())
message = 'The file "' + fn + '" was uploaded successfully'
else:
message = 'No file was uploaded'
print """\
Content-Type: text/html\n
<html>
<body>
<p>%s</p>
</body>
</html>
""" % (message,)If you run the above script on Unix/Linux, then you need to take care of replacing file separator as follows, otherwise on your windows machine above open() statement should work fine.
fn = os.path.basename(fileitem.filename.replace("\", "/" ))
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