FormattingString

• 1. "%s=%s" % (k, v)

  2. whole expression evaluates to a string. The first %s is replaced by the value of k; the second %s is replaced by the value of v. All other characters in the string (in this case, the equal sign) stay as they are.

     1. String formatting works with integers by specifying %d instead of %s

     2. Unlike string formatting, string concatenation works only when everything is already a string.

  3. Formatting Numbers

• • 1. print "Today's stock price: %f" % 50.4625

    2. print "Today's stock price: %.2f" % 50.4625

    3. print "Change since yesterday: %+.2f" % 1.5

Reference:

1. http://www.diveintopython.net/native_data_types/formatting_strings.html

2. http://effbot.org/librarybook/formatter.htm