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Ensure that load only runs once #2079

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Jan 18, 2023
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Ensure that load only runs once #2079

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3 changes: 2 additions & 1 deletion CHANGELOG.md
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Expand Up @@ -13,7 +13,8 @@ This document follows the conventions laid out in [Keep a CHANGELOG][].

### Fixed

- Fixed error occuring when inheriting a class containing a virtual generic method.
- Fixed error occuring when inheriting a class containing a virtual generic method.
- Make a second call to `pythonnet.load` a no-op, as it was intended.

## [3.0.1](https://github.com/pythonnet/pythonnet/releases/tag/v3.0.1) - 2022-11-03

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6 changes: 5 additions & 1 deletion pythonnet/__init__.py
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Expand Up @@ -120,7 +120,9 @@ def load(runtime: Union[clr_loader.Runtime, str, None] = None, **params: str) ->

The same parameters as for `set_runtime` can be used. By default,
`set_default_runtime` is called if no environment has been set yet and no
parameters are passed."""
parameters are passed.

After a successful call, further invocations will return immediately."""
global _LOADED, _LOADER_ASSEMBLY

if _LOADED:
Expand All @@ -142,6 +144,8 @@ def load(runtime: Union[clr_loader.Runtime, str, None] = None, **params: str) ->

if func(b"") != 0:
raise RuntimeError("Failed to initialize Python.Runtime.dll")

_LOADED = True

import atexit

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