[ARROW-9451] [Python] Unsigned integer types will accept string values in pyarrow.array

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25524
• Assignee: Antoine Pitrou
• Reporter: Wes McKinney
• Created: 13/Jul/20 23:58
• Updated: 11/Jan/23 08:06
• Resolved: 07/Apr/21 12:04

Description

See

In [12]: pa.array(['5'], type='uint32')                                                                                                                                                   
Out[12]: 
<pyarrow.lib.UInt32Array object at 0x7fabbdb1edc8>
[
  5
]

Also:

In [9]: pa.scalar('5', type='uint8')                                                                                                                                                      
Out[9]: <pyarrow.UInt8Scalar: 5>

In [10]: pa.scalar('5', type='uint16')                                                                                                                                                    
Out[10]: <pyarrow.UInt16Scalar: 5>

In [11]: pa.scalar('5', type='uint32')                                                                                                                                                    
Out[11]: <pyarrow.UInt32Scalar: 5>

But:

In [13]: pa.array(['5'], type='int32')                                                                                                                                                    
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-13-48092f69d948> in <module>
----> 1 pa.array(['5'], type='int32')

~/code/arrow/python/pyarrow/array.pxi in pyarrow.lib.array()
    267     else:
    268         # ConvertPySequence does strict conversion if type is explicitly passed
--> 269         return _sequence_to_array(obj, mask, size, type, pool, c_from_pandas)
    270 
    271 

~/code/arrow/python/pyarrow/array.pxi in pyarrow.lib._sequence_to_array()
     36 
     37     with nogil:
---> 38         check_status(ConvertPySequence(sequence, mask, options, &out))
     39 
     40     if out.get().num_chunks() == 1:

TypeError: an integer is required (got type str)

Issue Links

• links to: GitHub Pull Request #9912