Merge pull request numpy#20061 from DimitriPapadopoulos/python3

DOC: Remove references to Python 2

numpy/core/code_generators/ufunc_docstrings.py

@@ -1091,9 +1091,7 @@ def add_newdoc(place, name, doc):
 
     Behavior on division by zero can be changed using ``seterr``.
 
-    In Python 2, when both ``x1`` and ``x2`` are of an integer type,
-    ``divide`` will behave like ``floor_divide``. In Python 3, it behaves
-    like ``true_divide``.
+    Behaves like ``true_divide``.
 
     Examples
     --------
@@ -1106,27 +1104,6 @@ def add_newdoc(place, name, doc):
            [ Inf,  4. ,  2.5],
            [ Inf,  7. ,  4. ]])
 
-    Note the behavior with integer types (Python 2 only):
-
-    >>> np.divide(2, 4)
-    0
-    >>> np.divide(2, 4.)
-    0.5
-
-    Division by zero always yields zero in integer arithmetic (again,
-    Python 2 only), and does not raise an exception or a warning:
-
-    >>> np.divide(np.array([0, 1], dtype=int), np.array([0, 0], dtype=int))
-    array([0, 0])
-
-    Division by zero can, however, be caught using ``seterr``:
-
-    >>> old_err_state = np.seterr(divide='raise')
-    >>> np.divide(1, 0)
-    Traceback (most recent call last):
-      File "<stdin>", line 1, in <module>
-    FloatingPointError: divide by zero encountered in divide
-
     >>> ignored_states = np.seterr(**old_err_state)
     >>> np.divide(1, 0)
     0
@@ -4038,9 +4015,8 @@ def add_newdoc(place, name, doc):
     """
     Returns a true division of the inputs, element-wise.
 
-    Instead of the Python traditional 'floor division', this returns a true
-    division.  True division adjusts the output type to present the best
-    answer, regardless of input types.
+    Unlike 'floor division', true division adjusts the output type
+    to present the best answer, regardless of input types.
 
     Parameters
     ----------

numpy/distutils/ccompiler.py

@@ -258,9 +258,6 @@ def CCompiler_compile(self, sources, output_dir=None, macros=None,
         If compilation fails.
 
     """
-    # This method is effective only with Python >=2.3 distutils.
-    # Any changes here should be applied also to fcompiler.compile
-    # method to support pre Python 2.3 distutils.
     global _job_semaphore
 
     jobs = get_num_build_jobs()

numpy/lib/_iotools.py

@@ -23,8 +23,7 @@ def _decode_line(line, encoding=None):
 
     Returns
     -------
-    decoded_line : unicode
-         Unicode in Python 2, a str (unicode) in Python 3.
+    decoded_line : str
 
     """
     if type(line) is bytes: