Merge pull request #14558 from WarrenWeckesser/update-doc-code

DOC: Fix code that generates the table in the 'Casting Rules' section.

1 files changed, 35 insertions, 33 deletions

diff --git a/doc/source/reference/ufuncs.rst b/doc/source/reference/ufuncs.rst
index d00e88b34..30e9a9171 100644
--- a/doc/source/reference/ufuncs.rst
+++ b/doc/source/reference/ufuncs.rst
@@ -228,45 +228,47 @@ can generate this table for your system with the code given in the Figure.
 
 .. admonition:: Figure
 
-    Code segment showing the "can cast safely" table for a 32-bit system.
+    Code segment showing the "can cast safely" table for a 64-bit system.
+    Generally the output depends on the system; your system might result in
+    a different table.
 
+    >>> mark = {False: ' -', True: ' ✓'}
     >>> def print_table(ntypes):
-    ...     print 'X',
-    ...     for char in ntypes: print char,
-    ...     print
+    ...     print('X ' + ' '.join(ntypes))
     ...     for row in ntypes:
-    ...         print row,
+    ...         print(row, end='')
     ...         for col in ntypes:
-    ...             print int(np.can_cast(row, col)),
-    ...         print
+    ...             print(mark[np.can_cast(row, col)], end='')
+    ...         print()
+    ...
     >>> print_table(np.typecodes['All'])
     X ? b h i l q p B H I L Q P e f d g F D G S U V O M m
-    ? 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
-    b 0 1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0
-    h 0 0 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0
-    i 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0
-    l 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0
-    q 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0
-    p 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0
-    B 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0
-    H 0 0 0 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0
-    I 0 0 0 0 1 1 1 0 0 1 1 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0
-    L 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0
-    Q 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0
-    P 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 0 0
-    e 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0
-    f 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0
-    d 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0
-    g 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 1 1 0 0
-    F 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0
-    D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0
-    G 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0
-    S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0
-    U 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0
-    V 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
-    O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0
-    M 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
-    m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
+    ? ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    b - ✓ ✓ ✓ ✓ ✓ ✓ - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    h - - ✓ ✓ ✓ ✓ ✓ - - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    i - - - ✓ ✓ ✓ ✓ - - - - - - - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    l - - - - ✓ ✓ ✓ - - - - - - - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    q - - - - ✓ ✓ ✓ - - - - - - - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    p - - - - ✓ ✓ ✓ - - - - - - - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    B - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    H - - - ✓ ✓ ✓ ✓ - ✓ ✓ ✓ ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    I - - - - ✓ ✓ ✓ - - ✓ ✓ ✓ ✓ - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    L - - - - - - - - - - ✓ ✓ ✓ - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    Q - - - - - - - - - - ✓ ✓ ✓ - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    P - - - - - - - - - - ✓ ✓ ✓ - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - ✓
+    e - - - - - - - - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - -
+    f - - - - - - - - - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ - -
+    d - - - - - - - - - - - - - - - ✓ ✓ - ✓ ✓ ✓ ✓ ✓ ✓ - -
+    g - - - - - - - - - - - - - - - - ✓ - - ✓ ✓ ✓ ✓ ✓ - -
+    F - - - - - - - - - - - - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ ✓ - -
+    D - - - - - - - - - - - - - - - - - - ✓ ✓ ✓ ✓ ✓ ✓ - -
+    G - - - - - - - - - - - - - - - - - - - ✓ ✓ ✓ ✓ ✓ - -
+    S - - - - - - - - - - - - - - - - - - - - ✓ ✓ ✓ ✓ - -
+    U - - - - - - - - - - - - - - - - - - - - - ✓ ✓ ✓ - -
+    V - - - - - - - - - - - - - - - - - - - - - - ✓ ✓ - -
+    O - - - - - - - - - - - - - - - - - - - - - - ✓ ✓ - -
+    M - - - - - - - - - - - - - - - - - - - - - - ✓ ✓ ✓ -
+    m - - - - - - - - - - - - - - - - - - - - - - ✓ ✓ - ✓
 
 
 You should note that, while included in the table for completeness,