fix some anntzer's comments

afvincent · afvincent · commit 0bde03a9f551 · 2017-08-25T09:39:46.000-07:00
diff --git a/lib/matplotlib/tests/test_ticker.py b/lib/matplotlib/tests/test_ticker.py
@@ -612,7 +612,7 @@ def test_params(self, input, expected):
 
         # Test several non default separators: no separator, a narrow
         # no-break space (unicode character) and an extravagant string.
-        for _sep in ("", "\u202f", "@_@"):
+        for _sep in ("", "\N{NARROW NO-BREAK SPACE}", "@_@"):
             # Case 2: unit=UNIT and sep=_sep.
             # Replace the default space separator from the reference case
             # with the tested one `_sep` and append a unit symbol to it.
diff --git a/lib/matplotlib/ticker.py b/lib/matplotlib/ticker.py
@@ -1218,7 +1218,10 @@ def __init__(self, unit="", places=None, sep=" "):
             Precision with which to display the number, specified in
             digits after the decimal point (there will be between one
             and three digits before the decimal point). If it is None,
-            falls back to the floating point format '%g'.
+            the formatting falls back to the floating point format '%g',
+            which displays up to 6 *significant* digits (i.e. the
+            equivalent value for *places* varies between 0 and 5, both
+            values included).
 
         sep : str (default: " ")
             Separator used between the value and the prefix/unit. For
@@ -1258,7 +1261,7 @@ def format_eng(self, num):
         u'-1.00 \N{GREEK SMALL LETTER MU}'
 
         `num` may be a numeric value or a string that can be converted
-        to a numeric value with `float(num)`.
+        to a numeric value with ``float(num)``.
         """
         dnum = float(num)
         sign = 1
