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<title>4.1.1 String constants
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<H2><A NAME=
"SECTION006110000000000000000">
4.1.1 String constants
</A>
The constants defined in this module are:
<dl><dt><b><tt id='l2h-
818' xml:id='l2h-
818'
>ascii_letters
</tt></b></dt>
The concatenation of the
<tt class=
"constant">ascii_lowercase
</tt> and
<tt class=
"constant">ascii_uppercase
</tt> constants described below. This value is
<dl><dt><b><tt id='l2h-
819' xml:id='l2h-
819'
>ascii_lowercase
</tt></b></dt>
The lowercase letters
<code>'abcdefghijklmnopqrstuvwxyz'
</code>. This
value is not locale-dependent and will not change.
<dl><dt><b><tt id='l2h-
820' xml:id='l2h-
820'
>ascii_uppercase
</tt></b></dt>
The uppercase letters
<code>'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
</code>. This
value is not locale-dependent and will not change.
<dl><dt><b><tt id='l2h-
821' xml:id='l2h-
821'
>digits
</tt></b></dt>
The string
<code>'
0123456789'
</code>.
<dl><dt><b><tt id='l2h-
822' xml:id='l2h-
822'
>hexdigits
</tt></b></dt>
The string
<code>'
0123456789abcdefABCDEF'
</code>.
<dl><dt><b><tt id='l2h-
823' xml:id='l2h-
823'
>letters
</tt></b></dt>
The concatenation of the strings
<tt class=
"constant">lowercase
</tt> and
<tt class=
"constant">uppercase
</tt> described below. The specific value is
locale-dependent, and will be updated when
<tt class=
"function">locale.setlocale()
</tt> is called.
<dl><dt><b><tt id='l2h-
824' xml:id='l2h-
824'
>lowercase
</tt></b></dt>
A string containing all the characters that are considered lowercase
letters. On most systems this is the string
<code>'abcdefghijklmnopqrstuvwxyz'
</code>. Do not change its definition --
the effect on the routines
<tt class=
"function">upper()
</tt> and
<tt class=
"function">swapcase()
</tt> is undefined. The specific value is
locale-dependent, and will be updated when
<tt class=
"function">locale.setlocale()
</tt> is called.
<dl><dt><b><tt id='l2h-
825' xml:id='l2h-
825'
>octdigits
</tt></b></dt>
The string
<code>'
01234567'
</code>.
<dl><dt><b><tt id='l2h-
826' xml:id='l2h-
826'
>punctuation
</tt></b></dt>
String of ASCII characters which are considered punctuation
characters in the
"<tt class="samp
">C</tt>" locale.
<dl><dt><b><tt id='l2h-
827' xml:id='l2h-
827'
>printable
</tt></b></dt>
String of characters which are considered printable. This is a
combination of
<tt class=
"constant">digits
</tt>,
<tt class=
"constant">letters
</tt>,
<tt class=
"constant">punctuation
</tt>, and
<tt class=
"constant">whitespace
</tt>.
<dl><dt><b><tt id='l2h-
828' xml:id='l2h-
828'
>uppercase
</tt></b></dt>
A string containing all the characters that are considered uppercase
letters. On most systems this is the string
<code>'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
</code>. Do not change its definition --
the effect on the routines
<tt class=
"function">lower()
</tt> and
<tt class=
"function">swapcase()
</tt> is undefined. The specific value is
locale-dependent, and will be updated when
<tt class=
"function">locale.setlocale()
</tt> is called.
<dl><dt><b><tt id='l2h-
829' xml:id='l2h-
829'
>whitespace
</tt></b></dt>
A string containing all characters that are considered whitespace.
On most systems this includes the characters space, tab, linefeed,
return, formfeed, and vertical tab. Do not change its definition --
the effect on the routines
<tt class=
"function">strip()
</tt> and
<tt class=
"function">split()
</tt>
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