10000 setting entry in struct array with object field · Issue #6806 · numpy/numpy · GitHub
[go: up one dir, main page]
Skip to content

setting entry in struct array with object field #6806

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Closed
anntzer opened this issue Dec 11, 2015 · 2 comments
Closed

setting entry in struct array with object field #6806

anntzer opened this issue Dec 11, 2015 · 2 comments
Labels
50 - Duplicate component: numpy.ma masked arrays

Comments

@anntzer
Copy link
Contributor
anntzer commented Dec 11, 2015 
In [23]: a = np.ones(3, 'i4, O')

In [24]: a[0] = a[1]
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-24-5ef5a6077ce6> in <module>()
----> 1 a[0] = a[1]

ValueError: Setting void-array with object members using buffer.

numpy 1.10.1
First reported by @ldoddema in #6776.
@ahaldane
Copy link
Member

This is an old bug present in 1.9.3 (or before). It happens because of the behavior of structured item assignemt (in VOID_setitem), which treats the lhs as a buffer. This causes a number of known bugs.

A possible fix to this is implemented in #6053. (See links there for related bugs)

@charris
Copy link
Member
charris commented Dec 11, 2015

Closing as duplicate.

@charris charris closed this as completed Dec 11, 2015
@ahaldane ahaldane mentioned this issue Nov 16, 2017
Closed
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
50 - Duplicate component: numpy.ma masked arrays
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
3 participants
@charris @anntzer @ahaldane
0