gh-134939: Add a Multiple Interpreters Howto Doc #136143
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neonene
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Jul 1, 2025
| isolated from one another since there are few restrictions on memory | ||
| access within the same process. The Python runtime makes a best | ||
| effort at isolation but extension modules may easily violate that. | ||
| Therefore, do not use multiple interpreters in security-senstive |
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| Therefore, do not use multiple interpreters in security-senstive | |
| Therefore, do not use multiple interpreters in security-sensitive |
| Therefore, do not use multiple interpreters in security-senstive | ||
| situations, where they shouldn't have access to each other's data. | ||
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| That isolation facilitates a concurrency model based an independent |
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| That isolation facilitates a concurrency model based an independent | |
| That isolation facilitates a concurrency model based on independent |
| discipline about how the isolated components in your program interact | ||
| * not all PyPI extension modules support multiple interpreters yet | ||
| * the existing tools for passing data between interpreters safely | ||
| is still relatively inefficient and limited |
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| is still relatively inefficient and limited | |
| are still relatively inefficient and limited |
| First of all, keep in mind that using multiple interpreters is like | ||
| using multiple processes. They are isolated and independent from each | ||
| other. The main difference is that multiple interpreters live in the | ||
| same process, which makes it all more efficient and use fewer |
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| same process, which makes it all more efficient and use fewer | |
| same process, which makes it all more efficient and uses fewer |
| Mutable State is not Shared | ||
| --------------------------- | ||
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| Just be be clear, the underlying data of very few mutable objects is |
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| Just be be clear, the underlying data of very few mutable objects is | |
| Just to be clear, the underlying data of very few mutable objects is |
| to run the code. | ||
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| In the same way, running code in an interpreter does not reset that | ||
| interpreter.. The next time you run code in that interpreter, the |
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| interpreter.. The next time you run code in that interpreter, the | |
| interpreter. The next time you run code in that interpreter, the |
| the traceback and the process will exit with a failure code. | ||
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| The behavior is very similar when code is run in an interpreter. | ||
| The traceback get printed and, rather than a failure code, |
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| The traceback get printed and, rather than a failure code, | |
| The traceback gets printed and, rather than a failure code, |
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