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--- python3:output [2018/08/15 16:23]
jguerin Added summary of results to the introduction.
+++ python3:output [2018/08/15 16:33] (current)
jguerin Added byte count output to shell examples, removed and condensed associated descriptions.
@@ Line 31: / Line 31: @@
 ===== Advanced Output =====
-''print()'' is a wrapper around Python's ''write()''.  In some instances, ''write()'' may outperform ''print()''.
-''write()'' requires a single ''str'' argument.  ''write()'' does not perform concatenation, and does //not// automatically insert a ''\n'' at the end of your output. ''write()'' returns the number of characters written to the underlying stream.  This is hidden in competition environments, but it will appear if testing in the [[competitive_programming:python_interpreter|interactive interpreter]].
 <code python>
 >>> from sys import *
->>> stdout.write('\n') # '\n'
+>>> stdout.write('\n')
-</code>
-<code python>
->>> from sys import *
->>> stdout.write("Hello World!\n") # "Hello World!\n"
 </code>
-Concatenation is possible, but needs to be done with the ''+'' operator.
+''stdout.write()'' returns the number of characters written to the underlying stream, but only prints the information in the context of the [[competitive_programming:python_interpreter|interactive interpreter]].((This information is suppressed when ''stdout.write()'' is used in the context of a ''.py'' file, and hence requires no special handling in contests.))
 <code python>
 >>> from sys import *
->>> stdout.write("Hello" + " " + "World!" + "\n") # "Hello World!\n"
+>>> stdout.write("Hello World!\n") # "Hello World!\n"
-</code>
+Hello World!
-Numbers can be written using ''write()'', but they need to be cast to string (''str()'') and then concatenated with ''+''.
-<code python>
->>> from sys import *
->>> x = 12
->>> stdout.write("x is: " + str(x) + "\n") # "x is: 12\n"
 </code>
+Unlike ''print()'', ''stdout.write()'' takes only a single parameter and offers no formatting options. ''stdout.write()'' over multiple strings requires multiple calls or concatenations. Other types must be converted to string before they are printable.
 ==== Benchmarks ====

UT Martin Competitive Programming Guidebook

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