cython-users

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Adam Li, … Stefan Behnel3

May 18

How to? Shuffling a vector of integers in Cython without requiring the GIL

Adam Li schrieb am 13.05.22 um 22:14: > from libcpp.algorithm cimport random_shuffle > ... >

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How to? Shuffling a vector of integers in Cython without requiring the GIL

Adam Li schrieb am 13.05.22 um 22:14: > from libcpp.algorithm cimport random_shuffle > ... >

May 18

Adam Li, da-woods6

May 16

Using cdef extern to get std::algorithm c++ functionality into Cython

Hmm... It doesn't work, but I suspect it might be because swap is not thread safe(?) According to

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Using cdef extern to get std::algorithm c++ functionality into Cython

Hmm... It doesn't work, but I suspect it might be because swap is not thread safe(?) According to

May 16

ajfr...@gmail.com2

May 15

Docs or examples of exposing Cython functions so other Cython projects can cimport?

For future reference, we got this working for our project in these PRs: https://github.com/uber/h3-py

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Docs or examples of exposing Cython functions so other Cython projects can cimport?

For future reference, we got this working for our project in these PRs: https://github.com/uber/h3-py

May 15

Hugo Macdermott-Opeskin

May 15

Passing through dependent types

Hi all, I am trying to wrap the following which takes a templated class as an input. ``` template

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Passing through dependent types

Hi all, I am trying to wrap the following which takes a templated class as an input. ``` template

May 15

David Poensgen, … Stefan Behnel13

May 13

Sharing cython functions between modules: how to make it work (with a bit of project structure)

To anyone who comes across this in the future: One potential pitfall, as I just realized, has to do

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Sharing cython functions between modules: how to make it work (with a bit of project structure)

To anyone who comes across this in the future: One potential pitfall, as I just realized, has to do

May 13

David Poensgen, Golden Rockefeller3

May 10

openMP compiler flags: how to handle multiplatform case / unknown compiler

Hi, thanks for the suggestion, I am currently looking into that. But I am not sure I understand how

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openMP compiler flags: how to handle multiplatform case / unknown compiler

Hi, thanks for the suggestion, I am currently looking into that. But I am not sure I understand how

May 10

Yun, Stefan Behnel3

May 5

Best practices for importing pure python style modules

Thanks for taking the time to explain the how to reference cython modules from other ones. Here are

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Best practices for importing pure python style modules

Thanks for taking the time to explain the how to reference cython modules from other ones. Here are

May 5

walt3k, da-woods7

May 2

Cython traceback does not work even with the most trivial example!?

Ok, gotcha. Thanks again for all the help, Walt. On Sunday, May 1, 2022 at 4:31:45 PM UTC-5 D Woods

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Cython traceback does not work even with the most trivial example!?

Ok, gotcha. Thanks again for all the help, Walt. On Sunday, May 1, 2022 at 4:31:45 PM UTC-5 D Woods

May 2

Fabio Zadrozny, … walt3k6

Apr 26

Extracting AST from Cython files.

Thanks a bunch! On Monday, April 25, 2022 at 2:01:28 AM UTC-5 D Woods wrote: I'm not Fabio, but:

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Extracting AST from Cython files.

Thanks a bunch! On Monday, April 25, 2022 at 2:01:28 AM UTC-5 D Woods wrote: I'm not Fabio, but:

Apr 26

Edward Sr, Stefan Behnel3

Apr 24

How to let multiple Cython modules share a single global (static) C variable of a static library

On Wed, Apr 20, 2022 at 4:04 PM Stefan Behnel <stefan_ml@behnel.de> wrote: Hi, Edward Sr

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How to let multiple Cython modules share a single global (static) C variable of a static library

On Wed, Apr 20, 2022 at 4:04 PM Stefan Behnel <stefan_ml@behnel.de> wrote: Hi, Edward Sr

Apr 24

Yun, … da-woods4

Apr 24

Pure python mode support for parameterized types

Thanks for the responses, they've helped quite a bit! As a follow-up from the first example: cdef

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Pure python mode support for parameterized types

Thanks for the responses, they've helped quite a bit! As a follow-up from the first example: cdef

Apr 24

Vasilis Stamelos, da-woods4

Apr 22

cython producing error-prone code in __pyx_import_star_set with C macros

Right - I can reproduce it with a pxd file: cdef extern from *: int SOME_MACRO and a pyx file: from

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cython producing error-prone code in __pyx_import_star_set with C macros

Right - I can reproduce it with a pxd file: cdef extern from *: int SOME_MACRO and a pyx file: from

Apr 22

Apr 21

How to build a Cython extension using CMake

Hello everyone, I'm new to Cython, and I have the following problem: I have a very complicated

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How to build a Cython extension using CMake

Hello everyone, I'm new to Cython, and I have the following problem: I have a very complicated

Apr 21

xy l, da-woods2

Apr 19

Can I comment out enum __pyx_check_sizeof_voidp?

> I am not sure that there will be some bad effect after I change SIZEOF_VOID_P to 8. So can I

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Can I comment out enum __pyx_check_sizeof_voidp?

> I am not sure that there will be some bad effect after I change SIZEOF_VOID_P to 8. So can I

Apr 19

Potato, da-woods5

Apr 18

lambda callable in nogil block

The first part is what I have done, with the added fused types. I guess I should have provided some

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lambda callable in nogil block

The first part is what I have done, with the added fused types. I guess I should have provided some

Apr 18

Jessie van Schijndel, Stefan Behnel2

Apr 15

Extending np array using Cython with dictionary of np arrays as input

Hi, Jessie van Schijndel schrieb am 11.04.22 um 16:22: > I am trying to create a class which

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Extending np array using Cython with dictionary of np arrays as input

Hi, Jessie van Schijndel schrieb am 11.04.22 um 16:22: > I am trying to create a class which

Apr 15

Robert Luce, Stefan Behnel3

Apr 10

Deallocating deeply nested data structure results in stack overflow

Thanks for the pointer, that nails it! Robert Stefan Behnel schrieb am Sonntag, 10. April 2022 um 19:

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Deallocating deeply nested data structure results in stack overflow

Thanks for the pointer, that nails it! Robert Stefan Behnel schrieb am Sonntag, 10. April 2022 um 19:

Apr 10

Stefan Behnel, Francesc Alted2

Apr 4

The Cython compiler is 20 years old today !

Hi Stefan. Pyrex, and then Cython, came to be a game changer for the increasing plethora of

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The Cython compiler is 20 years old today !

Hi Stefan. Pyrex, and then Cython, came to be a game changer for the increasing plethora of

Apr 4

Mar 31

Is method overload generally supported?

Ahhhh, I found a few bug reports dating from a few years back... It's another instance of the

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Is method overload generally supported?

Ahhhh, I found a few bug reports dating from a few years back... It's another instance of the

Mar 31

Mar 31

Bug(?) with pointer to cdef class method of different types with except *

So I've written a basic system that checks a map for string input and calls a function pointer

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Bug(?) with pointer to cdef class method of different types with except *

So I've written a basic system that checks a map for string input and calls a function pointer

Mar 31

jbrock...@gmail.com, … Stefan Behnel4

Mar 30

Any perf bump from delaying cdef declaratios/allocatios?

jbrock...@gmail.com schrieb am 25.03.22 um 16:28: > eg in the status quo: > > ``` > cdef

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Any perf bump from delaying cdef declaratios/allocatios?

jbrock...@gmail.com schrieb am 25.03.22 um 16:28: > eg in the status quo: > > ``` > cdef

Mar 30

Mar 29

Cythonizing and cimporting modules in sub-directories on Windows and Linux (Error)

Sorry, forgot to mention that the __init__.pxd thing seemed to have been solved somehow, maybe by

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Cythonizing and cimporting modules in sub-directories on Windows and Linux (Error)

Sorry, forgot to mention that the __init__.pxd thing seemed to have been solved somehow, maybe by

Mar 29

Mar 27

Complex square root function csqrt

For future visitors, the following works in a notebook for the npymath access %%cython -a -f #

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Complex square root function csqrt

For future visitors, the following works in a notebook for the npymath access %%cython -a -f #

Mar 27

walt3k, Stefan Behnel15

Mar 22

AttributeError: 'builtin_function_or_method' object has no attribute '__globals__'

More information I think I probably should have shared in my last post - apologies. I am assuming how

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AttributeError: 'builtin_function_or_method' object has no attribute '__globals__'

More information I think I probably should have shared in my last post - apologies. I am assuming how

Mar 22

jbrock...@gmail.com, … da-woods7

Mar 22

Return tuple of memviews as struct

> Request for clarification. Outside the context of this particular > problem, I sometimes look

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Return tuple of memviews as struct

> Request for clarification. Outside the context of this particular > problem, I sometimes look

Mar 22

Thomas Gardiner

Mar 21

Help Wrapping Multiple Class / Struct functions

Hi Folks, I'm running into a problem that I can't seem to solve. I have some C-code that I

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Help Wrapping Multiple Class / Struct functions

Hi Folks, I'm running into a problem that I can't seem to solve. I have some C-code that I

Mar 21

walt3k, Stefan Behnel3

Mar 18

When looking at traceback of caught exception, fourth arg missing in

It was. Thanks for the idea/workaround! Walt. On Thursday, March 17, 2022 at 2:19:18 AM UTC-5 Stefan

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When looking at traceback of caught exception, fourth arg missing in

It was. Thanks for the idea/workaround! Walt. On Thursday, March 17, 2022 at 2:19:18 AM UTC-5 Stefan

Mar 18

Adam Li, da-woods7

Mar 17

Storing an array of numbers within a struct AND getting a numpy dtype from the struct

Ah I see that's a nice workaround! Thanks da-woods. Summary: I think I see a way forward then now

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Storing an array of numbers within a struct AND getting a numpy dtype from the struct

Ah I see that's a nice workaround! Thanks da-woods. Summary: I think I see a way forward then now

Mar 17

Craig de Stigter, da-woods2

Mar 7

Wrapping a `const void *` with the buffer interface without copying

I'm a bit puzzled because the cast to <char*> should do it (and does when I check myself

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Wrapping a `const void *` with the buffer interface without copying

I'm a bit puzzled because the cast to <char*> should do it (and does when I check myself

Mar 7

Julianus Pfeuffer, … Craig de Stigter4

Mar 4

Wrap nested enum class

Hi! Unfortunately I took the same or a similar route than you. I am creating a hidden _MyEnum python

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Wrap nested enum class

Hi! Unfortunately I took the same or a similar route than you. I am creating a hidden _MyEnum python

Mar 4

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