Created
December 21, 2012 08:41
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Example of uploading binary files programmatically in python, including both client and server code.
Client implemented with the requests library and the server is implemented with the flask library.
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| import requests | |
| #http://docs.python-requests.org/en/latest/user/quickstart/#post-a-multipart-encoded-file | |
| url = "http://localhost:5000/" | |
| fin = open('simple_table.pdf', 'rb') | |
| files = {'file': fin} | |
| try: | |
| r = requests.post(url, files=files) | |
| print r.text | |
| finally: | |
| fin.close() |
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| # http://flask.pocoo.org/docs/patterns/fileuploads/ | |
| import os | |
| from flask import Flask, request, redirect, url_for, send_from_directory | |
| from werkzeug import secure_filename | |
| UPLOAD_FOLDER = 'uploads' | |
| ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif']) | |
| app = Flask(__name__) | |
| app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER | |
| def allowed_file(filename): | |
| # this has changed from the original example because the original did not work for me | |
| return filename[-3:].lower() in ALLOWED_EXTENSIONS | |
| @app.route('/', methods=['GET', 'POST']) | |
| def upload_file(): | |
| if request.method == 'POST': | |
| file = request.files['file'] | |
| if file and allowed_file(file.filename): | |
| print '**found file', file.filename | |
| filename = secure_filename(file.filename) | |
| file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename)) | |
| # for browser, add 'redirect' function on top of 'url_for' | |
| return url_for('uploaded_file', | |
| filename=filename) | |
| return ''' | |
| <!doctype html> | |
| <title>Upload new File</title> | |
| <h1>Upload new File</h1> | |
| <form action="" method=post enctype=multipart/form-data> | |
| <p><input type=file name=file> | |
| <input type=submit value=Upload> | |
| </form> | |
| ''' | |
| @app.route('/uploads/<filename>') | |
| def uploaded_file(filename): | |
| return send_from_directory(app.config['UPLOAD_FOLDER'], | |
| filename) | |
| if __name__ == '__main__': | |
| app.run(debug=True) |
The code is in python 2, try to use python 3 which has better support for Unicode.
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From Windows 7, I cannot upload the file whose name is Chinese font.
In my case, it is: 无标题.png
After uploading is finished, it is saved as .png file in the "uploads" folder