File PyTables-compat-numpy119.patch of Package python-tables

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File PyTables-compat-numpy119.patch of Package python-tables

From fdd87f8452a778d451b985dbaa725a4825fa5a25 Mon Sep 17 00:00:00 2001
From: Antonio Valentino <antonio.valentino@tiscali.it>
Date: Sat, 26 Sep 2020 22:34:59 +0200
Subject: [PATCH] Improve compatibility with numpy >= 1.19 (closes gh-819)

---
 tables/flavor.py | 20 +++++++++++++++++++-
 tables/leaf.py   |  6 +++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/tables/flavor.py b/tables/flavor.py
index 253b06e0e..030578119 100644
--- a/tables/flavor.py
+++ b/tables/flavor.py
@@ -350,6 +350,24 @@ def _is_python(array):
 _numpy_desc = "NumPy array, record or scalar"
 
 
+from numpy.lib import NumpyVersion
+
+
+if NumpyVersion(numpy.__version__) >= NumpyVersion('1.19.0'):
+    def toarray(array, *args, **kwargs):
+        with warnings.catch_warnings():
+            warnings.simplefilter('error')
+            try:
+                array = numpy.array(array, *args, **kwargs)
+            except numpy.VisibleDeprecationWarning:
+                raise ValueError(
+                    'cannot guess the desired dtype from the input')
+
+        return array
+else:
+    toarray = numpy.array
+
+
 def _is_numpy(array):
     return isinstance(array, (numpy.ndarray, numpy.generic))
 
@@ -390,7 +408,7 @@ def _conv_numpy_to_numpy(array):
 
 @_numpy_contiguous
 def _conv_python_to_numpy(array):
-    nparr = numpy.array(array)
+    nparr = toarray(array)
     if nparr.dtype.kind == 'U':
         # from Python 3 loads of common strings are disguised as Unicode
         try:
diff --git a/tables/leaf.py b/tables/leaf.py
index 05c2ae9a0..e80912c67 100644
--- a/tables/leaf.py
+++ b/tables/leaf.py
@@ -15,8 +15,8 @@
 
 import numpy
 
-from .flavor import (check_flavor, internal_flavor,
-                           alias_map as flavor_alias_map)
+from .flavor import (check_flavor, internal_flavor, toarray,
+                     alias_map as flavor_alias_map)
 from .node import Node
 from .filters import Filters
 from .utils import byteorders, lazyattr, SizeType
@@ -539,7 +539,7 @@ def _point_selection(self, key):
             # Try to convert key to a numpy array.  If not possible,
             # a TypeError will be issued (to be catched later on).
             try:
-                key = numpy.array(key)
+                key = toarray(key)
             except ValueError:
                 raise TypeError("Invalid index or slice: %r" % (key,))
         elif not isinstance(key, numpy.ndarray):

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File PyTables-compat-numpy119.patch of Package python-tables

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