Python Strings

Front 1

Formatting operator for a character

Back 1

%c

Front 2

Formatting operator for a string

Back 2

%s

Front 3

Formatting operator for a signed decimal integer

Back 3

%i and %d

Front 4

Formatting operator for an unsigned octal integer

Back 4

%o

Front 5

Formatting operator for an unsigned integer

Back 5

%u

Front 6

Formatting operator for an unsigned hexadecimal integer (lowercase letters)

Back 6

%x

Front 7

Formatting operator for an unsigned hexadecimal integer (uppercase letters)

Back 7

%X

Front 8

Formatting operator for exponential notation (with lowercase 'e')

Back 8

%e

Front 9

Formatting operator for exponential notation (with uppercase 'E')

Back 9

%E

Front 10

Formatting operator for a floating point decimal real number

Back 10

%f and %F

Front 11

Formatting operator for an exponent if large or small enough, or an integer otherwise

Back 11

%g and %G

Front 12

What is the difference between a signed and an unsigned integer formatting operator?

Back 12

Signed integers show whether the ingeger is positive or negative (+ or -), while unsigned integers do not

Front 13

What is the prefix for raw strings and what are they?

Back 13

r'example raw string'

Raw strings display exactly as typed

Front 14

What is the prefix for unicode strings and what are they?

Back 14

u'example unicode string'

Unicode strings allow a greater number of characters to be displayed

Front 15

What character is used for left justification?

Back 15

- (dash)

Front 16

What is used to leave a blank space before a positive number?

Back 16

<sp>

Front 17

What is used to add the octal leading zero ( '0' ) or hexadecimal leading '0x' or '0X'?

Back 17

# (hash)

Front 18

What character is used to pad from the left with zeros (instead of spaces)?

Back 18

0 (zero)

Front 19

What is used to print a single literal '%'?

Back 19

%%

Front 20

What represents a mapping variable (dictionary arguments)?

Back 20

(var)

Front 21

Symbol where minimum total width is ____ and the number of digits to display after the decimal point is ____.

Back 21

m.n.

Front 22

What method capitalizes the first letter of a string?

Back 22

capitalize()

Front 23

What method returns a space-padded string with the original string centered to a total of "width" columns?

Back 23

center(width, fillchar)

Front 24

What method counts how many times 'str' occurs in string or in a substring of string if starting index beg and ending index end are given?

Back 24

count(str, beg= 0,end=len(string))

Front 25

What method decodes the string using the codec registered for encoding. Encoding defaults to the default string encoding?

Back 25

decode(encoding='UTF-8',errors='strict')

Front 26

What method returns encoded string version of string; on error, default is to raise a ValueError unless errors is given with 'ignore' or 'replace'?

Back 26

encode(encoding='UTF-8',errors='strict')

Front 27

What method determines if string or a substring of string (if starting index beg and ending index end are given) ends with suffix; returns true if so and false otherwise?

Back 27

endswith(suffix, beg=0, end=len(string))

Front 28

What method expands tabs in string to multiple spaces; defaults to 8 spaces per tab if tabsize not provided?

Back 28

expandtabs(tabsize=8)

Front 29

What method determine if 'str' occurs in string or in a substring of string; if starting index beg and ending index end are given returns index if found and -1 otherwise?

Back 29

find(str, beg=0 end=len(string))

Front 30

What method determine if 'str' occurs in string or in a substring of string, but raises an exception if 'str' not found?

Back 30

index(str, beg=0, end=len(string))

Front 31

What method returns true if string has at least 1 character and all characters are alphanumeric, and false otherwise?

Back 31

isalnum()

Front 32

What method returns true if string has at least 1 character and all characters are alphabetic and false otherwise?

Back 32

isalpha()

Front 33

What method returns true if string contains only digits and false otherwise?

Back 33

isdigit()

Front 34

What method returns true if string has at least 1 cased character and all cased characters are in lowercase and false otherwise?

Back 34

islower()

Front 35

What method returns true if a unicode string contains only numeric characters and false otherwise?

Back 35

isnumeric()

Front 36

What method returns true if string contains only whitespace characters and false otherwise?

Back 36

isspace()

Front 37

What method returns true if string is properly "titlecased" and false otherwise?

Back 37

istitle()

Front 38

What method returns true if string has at least one cased character and all cased characters are in uppercase and false otherwise?

Back 38

isupper()

Front 39

What method merges (concatenates) the string representations of elements in sequence 'seq' into a string, with separator 'string'?

Back 39

join(seq)

Front 40

What method returns the length of the string?

Back 40

len(string)

Front 41

What method returns a space-padded string with the original string left-justified to a total of 'width' columns?

Back 41

ljust(width[, fillchar])

Front 42

What method converts all uppercase letters in string to lowercase?

Back 42

lower()

Front 43

What method removes all leading whitespace in string?

Back 43

lstrip()

Front 44

What method returns a translation table to be used in translate function?

Back 44

maketrans()

Front 45

What method returns the max alphabetical character from the string 'str'?

Back 45

max(str)

Front 46

What method returns the min alphabetical character from the string 'str'?

Back 46

min(str)

Front 47

What method replaces all occurrences of 'old' in string with 'new', or at most 'max' occurrences if 'max' given?

Back 47

replace(old, new [, max])

Front 48

What method determines if 'str' occurs in string or in a substring of string, but searchbackwards in string?

Back 48

rfind(str, beg=0,end=len(string))

Front 49

What method determines if 'str' occurs in string or in a substring of string and raises an exception if 'str' not found, but search backwards in string?

Back 49

rindex(str, beg=0, end=len(string))

Front 50

What method returns a space-padded string with the original string right-justified to a total of 'width' columns?

Back 50

rjust(width,[, fillchar])

Front 51

What method removes all trailing whitespace of string?

Back 51

strip()

Front 52

What method splits string according to delimiter 'str' (space if notprovided) and returns list of substrings; split into at most 'num' substrings if given?

Back 52

split(str="", num=string.count(str))

Front 53

What method splits string at all (or 'num') NEWLINEs and returns a list ofeach line with NEWLINEs removed?

Back 53

splitlines(num=string.count('\n'))

Front 54

What method determines if string or a substring of string (if starting index beg and ending index end are given) starts with substring 'str'; returns true if so and false otherwise?

Back 54

startswith(str, beg=0,end=len(string))

Front 55

What method removes all leading and trailing whitespace of a string?

Back 55

strip([chars])

Front 56

What method inverts case for all letters in string?

Back 56

swapcase()

Front 57

What method returns "titlecased" version of string, that is, all words begin with uppercase and the rest are lowercase?

Back 57

title()

Front 58

What method translates string according to translation table str(256 chars), removing those in the del string?

Back 58

translate(table, deletechars="")

Front 59

What method converts lowercase letters in string to uppercase?

Back 59

upper()

Front 60

What method returns original string leftpadded with zeros to a total of 'width' characters; intended for numbers, it retains any sign given (less one zero)?

Back 60

zfill(width)

Front 61

What method returns true if a unicode string contains only decimal characters and false otherwise?

Back 61

isdecimal()