+# Large Video Upload
+
+This python sample demonstrates the following process of uploading large video files asynchronously with the Twitter API.
+
+1. **INIT** media upload.
+2. **APPEND** chunked data.
+3. **FINALIZE** media uploaded.
+4. Check **STATUS** of video processing.
+5. Tweeting with attached video.
+
+Large video files are longer than 30 second up to 140 seconds and/or a file size larger than 15 megabytes up to 512 megabytes.
+
+
+
+## Running the sample
+
+1. Install requirements:
+
+ ```
+ $ pip install requirements.txt
+ ```
+
+2. Fill in your consumer keys and access tokens:
+
+ ```
+ CONSUMER_KEY = 'your-consumer-key'
+ CONSUMER_SECRET = 'your-consumer-secret'
+ ACCESS_TOKEN = 'your-access-token'
+ ACCESS_TOKEN_SECRET = 'your-access-secret'
+ ```
+
+3. Run script:
+
+ ```
+ $ python async-upload.py
+ ```
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