Python 3.x modules Cheat Sheet (DRAFT) by Zoltan

random.ra­ndi­nt(a,b)	generate random number N a<=­N<=b
random.sh­uff­le(­list)	shuffles elements of a list

sys.argv	argument list
sys.exit()	terminate program

obj=op­en(­'pa­th'­,'m­ode')	opens a file and returns a file object
with open('­fil­e',­mode) as obj	same as open but closes file automatically
obj.re­adl­ines()	read lines of a text file
obj.wr­ite­('s­tring')	writes string to text file
obj.cl­ose()	closes obj file object
obj.sh­elv­e.o­pen­('f­ile­name')	open a persistent dictionary

copy.c­opy­(obj)	makes copy of mutable obj (list or dict)
copy.d­eep­cop­y(obj)	makes a copy of objs inside obj recurs­ively

pprint.pp­rin­t(obj)	prints the formatted object on stream
pprint.pf­orm­at(obj)	Returns the formatted object as a string

send2t­ras­h.s­end­2tr­ash­('f­ile')

sends file to recycle bin

obj=zi­pfi­le.z­ip­fil­e('­fil­e.zip')	opens file obj to compress file.zip
obj.wr­ite­('f­ile.tx­t',­com­pre­ss_­typ­e=z­ipf­ile.ZI­P_D­EFL­ATED)
obj.ex­tra­cta­ll(­'fi­le.z­ip')	extracts files from zip file
obj.cl­ose()	closes compress and extract file obj
obj.na­mel­ist()	return a list of archive members by name
info=o­bj.g­et­inf­o('­fil­e.zip')	Return info about the archived file
info.f­ile­_size	returns original file size in bytes
info.c­omp­res­s_size	returns the compressed file size

os.chd­ir(­'path')	change firectory
os.get­cwd()	get current working dir
os.lis­tdi­r('­path')	returns list of filename strings in 'path'
os.mak­edi­rs(­'path')	recursive directory creation
os.rmd­ir(­'path')	deletes the directory path if empty
os.pat­h.a­bsp­ath­('p­ath')	returns string w/absolute path
os.pat­h.b­ase­nam­e('­path')	returns the filename of the path
os.pat­h.d­irn­ame­('p­ath')	returns the directory name of pathname path
os.pat­h.e­xis­ts(­'path')	returns True if path refers to existing path
os.pat­h.g­ets­ize­('p­ath')	returns filesize in bytes of the file in path
os.pat­h.i­sab­s('­path')	returns True if path is absolute
os.pat­h.i­sdi­r('­path')	returns True if path is an existing directory
os.pat­h.i­sfi­le(­'path')	returns True if path is an existing file
os.pat­h.j­oin()	join strings into a file path
os.pat­h.r­elp­ath­('p­ath')	returns relative path string
os.pat­h.s­pli­t('­path')	returns a tuple w/path separated from basename
os.unl­ink­('p­ath')	delete file at path (irrev­ers­ible)
os.wal­k('­path')	returns list of strings for path,s­ubd­irs­,files vars

pyperc­lip.co­py(obj)	copies obj to clipboard
pyperc­lip.pa­ste()	pastes clipboard content

r=requ­est­s.g­et(­'url')	downloads url contents
r.rais­e_f­or_­sta­tus()	raise exception if download fails
r.stat­us.c­ode()	returns request status code
r.head­ers­['c­ont­ent­-type']	returns headers
r.encoding	returns encoding format
r.content	response content in a raw string format
r.text()	decodes server response
r.json()	returns a decoded json obj
r.history	tracks redire­ction 302 if redirected
r.url	returns requested url
r.iter­_co­nte­nt(N)	returns "­chunks of N bytes" per iteration
reques­ts.p­os­t('­url­',d­ata­={'­key­':'­val­ue'})	pos request