mirror of https://github.com/pyodide/pyodide.git
50 lines
1.5 KiB
Markdown
50 lines
1.5 KiB
Markdown
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(serving_pyodide_packages)=
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# Serving pyodide packages
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If you built your pyodide distribution or downloaded the release tarball
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you need to serve pyodide files with a appropriate headers.
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Because browsers require WebAssembly files to have mimetype of
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`application/wasm` we're unable to serve our files using Python's built-in
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`SimpleHTTPServer` module.
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Let's wrap Python's Simple HTTP Server and provide the appropiate mimetype for
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WebAssembly files into a `pyodide_server.py` file (in the `pyodide_local`
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directory):
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```python
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import sys
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import socketserver
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from http.server import SimpleHTTPRequestHandler
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class Handler(SimpleHTTPRequestHandler):
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def end_headers(self):
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# Enable Cross-Origin Resource Sharing (CORS)
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self.send_header('Access-Control-Allow-Origin', '*')
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super().end_headers()
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if sys.version_info < (3, 7, 5):
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# Fix for WASM MIME type for older Python versions
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Handler.extensions_map['.wasm'] = 'application/wasm'
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if __name__ == '__main__':
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port = 8000
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with socketserver.TCPServer(("", port), Handler) as httpd:
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print("Serving at: http://127.0.0.1:{}".format(port))
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httpd.serve_forever()
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```
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Let's test it out.
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In your favourite shell, let's start our WebAssembly aware web server:
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```bash
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python pyodide_server.py
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```
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Point your WebAssembly aware browser to
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[http://localhost:8000/index.html](http://localhost:8000/index.html) and open
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your browser console to see the output from python via pyodide!
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