print |
outputs results of expressions |
python |
run script using python |
# |
comment out part of a script |
+ |
addition, or concatenate |
– |
subtraction |
/ |
division |
* |
multiplication |
% |
modulo operator |
> |
greater than |
< |
less than |
>= |
greater than or equal to |
<= |
less than or equal to |
= |
equals, names things |
%d |
decimal |
%r |
string |
%s |
string |
/n |
newline |
/t |
tab |
\ |
escape |
\\ |
escape |
“”” |
string, as many lines of text as you want |
”’ |
string, as many lines of text as you want |
raw_input |
read a string from input |
pydoc |
python documentation |
open |
open a file |
file |
open or create a file |
os |
operating system |
sys |
built-in module |
import |
find/initialize a module |
argv |
The list of command line arguments passed to a Python script. |
read |
read a file’s contents |
close |
close a file |
readline |
Read one entire line from the file. |
truncate |
Empties the file |
write |
writes stuff to file |
exists |
Return True if path refers to an existing path. Returns False for broken symbolic links. |
def |
start a function |
*args |
pass an argument list, like argvs for functions |
seek |
set a file’s position |
+= |
delimiter, variable equals itself plus one |
return |
You can return anything that you can put to the right of an = |
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