Allow pathlib.Path arguments #6418
Description
savez, savez_compressed, and load all take str as an argument, but give an error when passed a pathlib.Path argument as a filename. Now that pathlib.Path is in the standard library, it would be nice if these functions could accept a Path instance as an argument, in addition to str and file objects.
Example:
p = Path('test.npz')
np.savez_compressed(p, data=[10])---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-16-304bca81cdf4> in <module>()
1 p = Path('test.npz')
----> 2 np.savez_compressed(p, data=[10])
/usr/lib/python3.5/site-packages/numpy/lib/npyio.py in savez_compressed(file, *args, **kwds)
510
511 """
--> 512 _savez(file, args, kwds, True)
513
514
/usr/lib/python3.5/site-packages/numpy/lib/npyio.py in _savez(file, args, kwds, compress)
550 fid.close()
551 fid = None
--> 552 zipf.write(tmpfile, arcname=fname)
553 finally:
554 if fid:
/usr/lib/python3.5/zipfile.py in write(self, filename, arcname, compress_type)
1481 zip64 = self._allowZip64 and \
1482 zinfo.file_size * 1.05 > ZIP64_LIMIT
-> 1483 self.fp.write(zinfo.FileHeader(zip64))
1484 file_size = 0
1485 while 1:
/usr/lib/python3.5/zipfile.py in write(self, data)
675
676 def write(self, data):
--> 677 n = self.fp.write(data)
678 self.offset += n
679 return n
AttributeError: 'PosixPath' object has no attribute 'write'