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#1625509: describe behaviour of import lock

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Andrew M. Kuchling 2008-05-10 17:48:45 +00:00
parent 311c580539
commit 4ff7fc49c6
1 changed files with 7 additions and 1 deletions
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Doc/library/imp.rst
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@ -114,10 +114,16 @@ This module provides an interface to the mechanisms used to implement the
.. function:: acquire_lock() .. function:: acquire_lock()
Acquires the interpreter's import lock for the current thread. This lock should Acquire the interpreter's import lock for the current thread. This lock should
be used by import hooks to ensure thread-safety when importing modules. On be used by import hooks to ensure thread-safety when importing modules. On
platforms without threads, this function does nothing. platforms without threads, this function does nothing.
Once a thread has acquired the import lock, the same thread may acquire it
again without blocking; the thread must release it once for each time it has
acquired it.
On platforms without threads, this function does nothing.
.. versionadded:: 2.3 .. versionadded:: 2.3