How to upload and save a file using bottle framework

Question

HTML:

<form action="/upload" method="post" enctype="multipart/form-data">   Category:      <input type="text" name="category" />   Select a file: <input type="file" name="upload" />   <input type="submit" value="Start upload" /> </form> 

View:

@route('/upload', method='POST') def do_login():     category   = request.forms.get('category')     upload     = request.files.get('upload')     name, ext = os.path.splitext(upload.filename)     if ext not in ('png','jpg','jpeg'):         return 'File extension not allowed.'      save_path = get_save_path_for_category(category)     upload.save(save_path) # appends upload.filename automatically     return 'OK' 

I'm trying to do this code but it is not working. What I'm doing wrong?

Answer 1

Starting from bottle-0.12 the FileUpload class was implemented with its upload.save() functionality.

Here is example for the Bottle-0.12:

import os from bottle import route, request, static_file, run  @route('/') def root():     return static_file('test.html', root='.')  @route('/upload', method='POST') def do_upload():     category = request.forms.get('category')     upload = request.files.get('upload')     name, ext = os.path.splitext(upload.filename)     if ext not in ('.png', '.jpg', '.jpeg'):         return "File extension not allowed."      save_path = "/tmp/{category}".format(category=category)     if not os.path.exists(save_path):         os.makedirs(save_path)      file_path = "{path}/{file}".format(path=save_path, file=upload.filename)     upload.save(file_path)     return "File successfully saved to '{0}'.".format(save_path)  if __name__ == '__main__':     run(host='localhost', port=8080) 

Note: os.path.splitext() function gives extension in ".<ext>" format, not "<ext>".

• If you use version previous to Bottle-0.12, change:

  ... upload.save(file_path) ... 

to:

    ...     with open(file_path, 'wb') as open_file:         open_file.write(upload.file.read())     ... 

• Run server;
• Type "localhost:8080" in your browser.