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Resource
Download
- Python Quick Reference Card [.pdf]
- Python 2.6 Quick Reference
String
String Methods
- capitalize()
- center(width[, fillchar])
- count(sub[, start[, end]])
- decode
- encode([encoding[, errors]])
- endswith(suffix[, start[, end]])
- expandtabs([tabsize])
- find(sub[, start[, end]])
- format(*args, **kwargs)
- index(sub[, start[, end]])
- isalnum()
- isalpha()
- isdigit()
- islower()
- isspace()
- istitle()
- isupper()
- join(iterable)
- ljust(width[, fillchar])
- lower()
- lstrip([chars])
- partition(sep)
- replace(old, new[, count])
- rfind(sub[, start[, end]])
- rindex(sub[, start[, end]])
- rjust(width[, fillchar])
- rpartition(sep)
- rsplit([sep[, maxsplit]])
- rstrip([chars])
- split([sep[, maxsplit]])
- splitlines([keepends])
- startswith(prefix[, start[, end]])
- strip([chars])
- swapcase
- title()
- translate(table[, deletechars])
- upper()
- zfill(width)
- isnumeric()
- isdecimal()
File
Methods
- close()
- flush()
- fileno()
- isatty()
- next()
- read([size])
- readline([size])
- readlines([sizehint])
- xreadlines()
- seek(offset[, whence])
- tell()
- truncate([size])
- write(str)
- writelines(sequence)
Attributes
- closed
- encoding
- errors
- mode
- name
- newlines
- softspace
Set & Mapping
Set Types
- len(s)
- x in s
- x not in s
- isdisjoint(other)
- issubset(others)
- issuperset
- union(other...)
- intersection(other, ...)
- difference(other...)
- symmetric_difference(other)
- copy()
- update()
- intersection_update()
- difference_update()
- symmetric_difference_update()
- add(elem)
- remove()
- discard(elem)
- pop()
- clear()
Mapping Types
- len(d)
- d[key]
- d[key] = value
- del d[key]
- key in d
- key not in d
- iter(d)
- clear()
- copy()
- fromkeys(seq[, value])
- get(key[, default])
- has_key(key)
- items()
- iteritems()
- iterkeys()
- itervalues()
- keys()
- pop(key[, default])
- popitem()
- setdefault(key[, default])
- update([other])
- values
Date Time
Date Object
- replace((year, month, day))
- timetuple()
- toordinal()
- weekday()()
- isoweekday()()
- isocalendar()()
- isoformat()
- __str__()
- ctime()
- strftime()
Datetime Object
- date()
- time()
- timetz()
- replace([year[, month[, day[, hour[, minute[, second[, microsecond[, tzinfo]]]]]]]])
- astimezone(tz)
- utcoffset()
- dst()
- tzname()
- timetuple()
- utctimetuple()
- toordinal()
- weekday()
- isoweekday()
- isocalendar()
- isoformat()
- __str__()
- ctime()
- strftime()
Time Object
- replace([hour[, minute[, second[, microsecond[, tzinfo]]]]])
- isoformat()
- __str__()
- strftime()
- utcoffset()
- dst()
- tzname()
Array
Array Methods
- append(x)
- buffer_info()
- byteswap()
- count(x)
- extend(iterable)
- fromfile(f,n)
- fromlist(list)
- fromstring(s)
- fromunicode(s)
- index(x)
- insert(i,x)
- pop([i])
- remove(x)
- reverse()
- tofile(f)
- tolist()
- tostring()
- tounicode()
Indexes and Slices
- a=[0,1,2,3,4,5]
- 6
- len(a)
- 0
- a[0]
- 5
- a[5]
- 5
- a[-1]
- 4
- a[-2]
- [1,2,3,4,5]
- a[1:]
- [0,1,2,3,4]
- a[:5]
- [0,1,2,3]
- a[:-2]
- [1,2]
- a[1:3]
- [1,2,3,4]
- a[1:-1]
- Shallow copy of a
- b=a[:]
Math
Number Theoretic
- ceil(x)
- copysign(x,y)
- fabs(x)
- factorial(x)
- floor(x)
- fmod(x,y)
- frexp(x)
- fsum(iterable)
- isinf(x)
- isnan(x)
- ldexp(x,i)
- modf()
- trunc()
Power and Logarithmic
- exp(x)
- log(x[,base])
- log1p(x)
- log10(x)
- pow(x,y)
- sqrt(x)
Trigonometric Functions
- acos(x)
- asin(x)
- atan(x)
- atan2(y,x)
- cos(x)
- hypot(x,y)
- sin(x)
- tan(x)
Hyperbolic Functions
- acosh(x)
- asinh(x)
- atanh(x)
- cosh(x)
- sinh(x)
- tanh(x)
Constants
- math.pi
- The mathematical constant π = 3.141592..., to available precision.
- math.e
- The mathematical constant e = 2.718281..., to available precision.
Random
Functions
- seed([x])
- getstate()
- setstate(state)
- jumpahead(n)
- getrandbits(k)
- randrange([start], stop[, step])
- randint(a,b)
- choice(seq)
- shuffle(x[,random])
- sample(population,k)
- random()
- uniform(a,b)
- triangular(low,high,mode)
- betavariate(alpha,beta)
- expovariate(lambd)
- gammavariate(alpha,beta)
- gauss(mu,sigma)
- lognormvariate(mu,sigma)
- normalvariate(mu,sigma)
- vonmisesvariate(mu,kappa)
- paretovariate(alpha)
- weibullvariate(alpha,beta)
Sys
Sys Variables
- argv
- Command line args
- builtin_module_names
- Linked C modules
- byteorder
- Native byte order
- check_-interval
- Signal check frequency
- exec_prefix
- Root directory
- executable
- Name of executable
- exitfunc
- Exit function name
- modules
- Loaded modules
- path
- Search path
- platform
- Current platform
- stdin, stdout, stderr
- File objects for I/O
- version_info
- Python version info
- winver
- Version number
sys.argv
- foo.py
- sys.argv[0]
- bar
- sys.argv[1]
- -c
- sys.argv[2]
- qux
- sys.argv[3]
- --h
- sys.argv[4]
OS
os Variables
- altsep
- Alternative sep
- curdir
- Current dir string
- defpath
- Default search path
- devnull
- Path of null device
- extsep
- Extension separator
- linesep
- Line separator
- name
- Name of OS
- pardir
- Parent dir string
- pathsep
- Patch separator
- sep
- Path separator
Class
Special Methods
- __new__(cls)
- __lt__(self, other)
- __init__(self, args)
- __le__(self, other)
- __del__(self)
- __gt__(self, other)
- __repr__(self)
- __ge__(self, other)
- __str__(self)
- __eq__(self, other)
- __cmp__(self, other)
- __ne__(self, other)
- __index__(self)
- __nonzero__(self)
- __hash__(self)
- __getattr__(self, name)
- __getattribute__(self, name)
- __setattr__(self, name, attr)
- __delattr__(self, name)
- __call__(self, args, kwargs)
String Formatting
Formatting Operations
- 'd'
- Signed integer decimal.
- 'i'
- Signed integer decimal.
- 'o'
- Signed octal value.
- 'u'
- Obsolete type – it is identical to 'd'.
- 'x'
- Signed hexadecimal (lowercase).
- 'X'
- Signed hexadecimal (uppercase).
- 'e'
- Floating point exponential format (lowercase).
- 'E'
- Floating point exponential format (uppercase).
- 'f'
- Floating point decimal format.
- 'F'
- Floating point decimal format.
- 'g'
- Floating point format. Uses lowercase
exponential format if exponent is less than -4 or not less than
precision, decimal format otherwise.
- 'G'
- Floating point format. Uses uppercase
exponential format if exponent is less than -4 or not less than
precision, decimal format otherwise.
- 'c'
- Single character (accepts integer or single character string).
- 'r'
- String (converts any Python object using repr().
- 's'
- String (converts any Python object using str()
- '%'
- No argument is converted, results in a '%' character in the result.
Date Formatting
Date Formatting
- %a
- Abbreviated weekday (Sun)
- %A
- Weekday (Sunday)
- %b
- Abbreviated month name (Jan)
- %B
- Month name (January)
- %c
- Date and time
- %d
- Day (leading zeros) (01 to 31)
- %H
- 24 hour (leading zeros) (00 to 23)
- %I
- 12 hour (leading zeros) (01 to 12)
- %j
- Day of year (001 to 366)
- %m
- Month (01 to 12)
- %M
- Minute (00 to 59)
- %p
- AM or PM
- %S
- Second (00 to 61?)
- %U
- Week number1 (00 to 53)
- %w
- Weekday2 (0 to 6)
- %W
- Week number3 (00 to 53)
- %x
- Date
- %X
- Time
- %y
- Year without century (00 to 99)
- %Y
- Year (2008)
- %Z
- Time zone (GMT)
- %%
- A literal "%" character (%)
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