- Python Syntax Cheat Sheet Pdf
- Python Cheat Sheet Pdf
- Basic Python Cheat Sheet
- Python Array Cheat Sheet Answer
Resource
Download
String
String Methods
File
Methods
Linear arrays, or one dimensional arrays, are the most basic. Are static in size, meaning that they are declared with a fixed size. Dynamic arrays are like one dimensional arrays, but have reserved space for additional elements. Capture one software. If a dynamic array is full, it copies it's contents to a larger array.
Python ML Cheat Sheet. Python Heuristic Search- AI: 9. Python Statement, Indentation, and Comments. Python Dictionaries: Python array Module. This Python cheat sheet is a quick reference for NumPy beginners. Given the fact that it's one of the fundamental packages for scientific computing, NumPy is one of the packages that you must be able to use and know if you want to do data science with Python.
Attributes
Set & Mapping
Set Types
- len(s)
- x in s
- x not in s
Mapping Types
- len(d)
- d[key]
- d[key] = value
- del d[key]
- key in d
- key not in d
- iter(d)
Date Time
Date Object
Datetime Object
Time Object
Array
Array Methods
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
Power and Logarithmic
Trigonometric Functions
Hyperbolic Functions
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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
Sys
Sys Variables
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- 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
Python Syntax Cheat Sheet Pdf
sys.argv
- foo.py
- sys.argv[0]
- bar
- sys.argv[1]
- -c
- sys.argv[2]
- qux
- sys.argv[3]
- --h
- sys.argv[4]
Python Cheat Sheet Pdf
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
Basic Python Cheat Sheet
- '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
Python Array Cheat Sheet Answer
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 (%)