## Question

Asked By – cyborg

How can I find the index of the first occurrence of a number in a Numpy array?

Speed is important to me. I am not interested in the following answers because they scan the whole array and don’t stop when they find the first occurrence:

```
itemindex = numpy.where(array==item)[0][0]
nonzero(array == item)[0][0]
```

Note 1: none of the answers from that question seem relevant Is there a Numpy function to return the first index of something in an array?

Note 2: using a C-compiled method is preferred to a Python loop.

**Now we will see solution for issue: Numpy: find first index of value fast **

## Answer

There is a feature request for this scheduled for Numpy 2.0.0: https://github.com/numpy/numpy/issues/2269

This question is answered By – cyborg

**This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0 **