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update and fix python plugin example (#6633)

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* update and fix python plugin example

* update comment
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WindSoilder 2022-09-29 06:06:43 +08:00 committed by GitHub
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commit d2e4f03d19
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1 changed files with 12 additions and 4 deletions
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16
crates/nu_plugin_python/plugin.py → crates/nu_plugin_python/nu_plugin_python_example.py
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@ -1,12 +1,12 @@
# Example of using a Python script as a Nushell plugin
#
# The example uses JSON encoding but it should be a similar process using
# Cap'n Proto to move data between Nushell and the plugin. The only difference
# would be that you need to compile the schema file in order have the objects
# that decode and encode information that is read and written to stdin and stdout
# msgpack to move data between Nushell and the plugin. The only difference
# would be that you need to use msgpack relative lib(like msgpack) to
# decode and encode information that is read and written to stdin and stdout
#
# To register the plugin use:
# register <path-to-py-file> -e json
# register <path-to-py-file>
#
# Be carefull with the spans. Miette will crash if a span is outside the
# size of the contents vector. For this example we are using 0 and 1, which will
@ -392,7 +392,15 @@ def process_call(plugin_call):
}
def tell_nushell_encoding():
sys.stdout.write(chr(4))
for ch in "json":
sys.stdout.write(chr(ord(ch)))
sys.stdout.flush()
def plugin():
tell_nushell_encoding()
call_str = ",".join(sys.stdin.readlines())
plugin_call = json.loads(call_str)