Merge pull request matplotlib#12477 from anntzer/microsign

MNT: Use \N{MICRO SIGN} instead of \N{GREEK SMALL LETTER MU} in EngFormatter.

Author: tacaswell

lib/matplotlib/tests/test_ticker.py

@@ -671,7 +671,7 @@ class TestEngFormatter(object):
         (-0.0, ('0', '0', '0.00')),
         (-0, ('0', '0', '0.00')),
         (0, ('0', '0', '0.00')),
-        (1.23456789e-6, ('1.23457 \u03bc', '1 \u03bc', '1.23 \u03bc')),
+        (1.23456789e-6, ('1.23457 µ', '1 µ', '1.23 µ')),
         (0.123456789, ('123.457 m', '123 m', '123.46 m')),
         (0.1, ('100 m', '100 m', '100.00 m')),
         (1, ('1', '1', '1.00')),

lib/matplotlib/ticker.py

@@ -1187,7 +1187,7 @@ class EngFormatter(Formatter):
         -15: "f",
         -12: "p",
          -9: "n",
-         -6: "\N{GREEK SMALL LETTER MU}",
+         -6: "\N{MICRO SIGN}",
          -3: "m",
           0: "",
           3: "k",
@@ -1251,7 +1251,7 @@ def format_eng(self, num):
         '1.0 M'
 
         >>> format_eng("-1e-6") # for self.places = 2
-        '-1.00 \N{GREEK SMALL LETTER MU}'
+        '-1.00 \N{MICRO SIGN}'
         """
         sign = 1
         fmt = "g" if self.places is None else ".{:d}f".format(self.places)