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Cheatography Integer -256, 15 Float -253.23, 1.253e-10 String "Hello", ‘Goodbye’, ""Multiine"™" Boolean True, False List [value, ...] Tuple (value, ...)1 Dictionary _{ key: value, ...} Set { value, value, ... }2 1 Parentheses usually optional 2 Create an empty set with set() If Statement if expression: statements elif expression: statements else: statements While Loop while expression: statements For Loop for var in collection: statements Counting For Loop for i in range(start, end [, step): statements (start is included; end is not) Arithmetic Operators x+y add x-y subtract xty multiply x/y divide x%y modulus xy x7 Assignment shortcuts: x op= y Example: x += 1 increments x By sschaub cheatography.com/sschaub/ Essential Python Cheat Sheet by sschaub via cheatography.com/1000/cs/374/ ee uae eer xy Greater. x>=y Greater or eq y Equal xl=y — Notequal EP eeu not x xandy xory te aU] try: ‘statements except [ exception type [ asvar ] ]: ‘statements finally: ‘statements Ce ed int(exph Converts expr to integer float(expr) Converts expr to float str(expr) Converts expr to string chr(num) ASCII char num len(s) length of s sii] ith item ins (0-based) s{start: slice of s from start (included) to end] end (excluded) xins Trueifx is contained ins xnotins True ifx is not contained ins s+t the concatenation of s with t s'n ncopies of s concatenated sorted(s a sorted copy of s ) s.index( position ins of item item) Deesan Reser) s.lower() lowercase copy of s s.replace(old, copy of s with old replaced new) with new s.split( delim) list of substrings delimited by delim Published 21st May, 2012. Last updated 2nd June, 2014. Page 1 of 2. TSU Re) eet nek Cn) s.strip() copy of s with whitespace trimmed s.upper() uppercase copy of s See also http://docs.python.orgfibrary/stdtypes. htmifstring- methods TET eee) eed del Ist] Deletes ith item from Ist Ist.append(e) Appends eto Ist Ist.insert(,e) Inserts e before ith item in Ist Ist.sort() Sorts ist See also http://docs.python.orgfibrary/stdtypes. htmitttypess eq-mutable Dee Say len(d) Number of items ind del key] Removes key from d keyind True ifd contains key dkeys() Returns a list of keys ind See also http://docs. python.org/ibrary/stdtypes. html#mappi ng-types-dict Function Det Try def name(arg!, arg2, statements return expr sys.argv _List of command line arguments (argv{0] is executable) os.environ Dictionary of environment variables os.curdir String with path of current directory import sys; print(sys.argv) or from sys import argy; print(argv) Sponsored by CrosswordCheats.com Learn to solve cryptic crosswords! http://crosswordcheats.com 
