pythongh-94300: Update datetime.strptime documentation (python#95318)

howiezhao · pganssle · web-flow · commit 5b404d6cad2b · 2023-04-24T12:35:15.000-06:00
The new wording better reflects the cases where `datetime.strptime` differs from` time.strptime`.

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Co-authored-by: Paul Ganssle &lt;git@m.ganssle.io&gt;
diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
@@ -1043,7 +1043,7 @@ Other constructors, all class methods:
    Return a :class:`.datetime` corresponding to *date_string*, parsed according to
    *format*.
 
-   This is equivalent to::
+   If *format* does not contain microseconds or timezone information, this is equivalent to::
 
      datetime(*(time.strptime(date_string, format)[0:6]))
 
