WGU C859 Python questions with% complete solution
Slice Notation - -my_str[start:end]
will create a substring from my_str index start through to end - 1
-Slice Notation with Stride - -my_str[start:end:stride]
-Field Width - -minimum number of characters that must be inserted into a string
my_str='{name:16}{goals:8}'
-Alignment Character - -determines how a value should be aligned within the width of
the field
my_str='[name:<16}{goals:>8}{points:^6}'
-Fill Character - -used to pad a replacement field when the string being inserted is
smaller than the field width
{score:0>4} produces 0018
-Floating-point Precision - -format specification which indicates how many digits to
the right of the decimal should be included in the output of floating types
'{:.1f}'.format(1.725) produces 1.7
-Replace (old and new parameters) - -returns a copy of the string with all occurrences
of the substring old replaced by the string new; old and new arguments may be string
variables or string literals
phrase.replace('one', 'two') will replace any occurrence of the word one with two
-Replace (old, new and count parameters) - -returns a copy of the string with all
occurences of the substring old replaced by the new except only replaces the first
count occurrences of old
phrase.replace('one', 'two', 5) will replace any occurrances of 'one' with 'two' but will
begin looking at index 5
-Find (with x variable) - -string method that returns the index of the first occurrence
of item x in the string, else returns -1
my_str.find('!') will return the index of the '!' in the string
-Find (with x, and start parameter) - -string method that will return the index of the
first occurrence of item x in the string but will begin looking at index start
my_str.find('!', 3) will produce the index of the first ! on or after index 3
-Find (with x, start and end parameter) - -string method that will return the index of
the first occurrence of item x in the string but will begin looking at the index start and
will stop at index end -1
my_str.find('!', 3, 8) will produce the index of the first ! but will start looking at index 3
and stop looking at index 8 - 1
-Rfind - -string method that works the same as str.find(x) but looks for the parameter
in reverse, returning the last occurrence in the string
Slice Notation - -my_str[start:end]
will create a substring from my_str index start through to end - 1
-Slice Notation with Stride - -my_str[start:end:stride]
-Field Width - -minimum number of characters that must be inserted into a string
my_str='{name:16}{goals:8}'
-Alignment Character - -determines how a value should be aligned within the width of
the field
my_str='[name:<16}{goals:>8}{points:^6}'
-Fill Character - -used to pad a replacement field when the string being inserted is
smaller than the field width
{score:0>4} produces 0018
-Floating-point Precision - -format specification which indicates how many digits to
the right of the decimal should be included in the output of floating types
'{:.1f}'.format(1.725) produces 1.7
-Replace (old and new parameters) - -returns a copy of the string with all occurrences
of the substring old replaced by the string new; old and new arguments may be string
variables or string literals
phrase.replace('one', 'two') will replace any occurrence of the word one with two
-Replace (old, new and count parameters) - -returns a copy of the string with all
occurences of the substring old replaced by the new except only replaces the first
count occurrences of old
phrase.replace('one', 'two', 5) will replace any occurrances of 'one' with 'two' but will
begin looking at index 5
-Find (with x variable) - -string method that returns the index of the first occurrence
of item x in the string, else returns -1
my_str.find('!') will return the index of the '!' in the string
-Find (with x, and start parameter) - -string method that will return the index of the
first occurrence of item x in the string but will begin looking at index start
my_str.find('!', 3) will produce the index of the first ! on or after index 3
-Find (with x, start and end parameter) - -string method that will return the index of
the first occurrence of item x in the string but will begin looking at the index start and
will stop at index end -1
my_str.find('!', 3, 8) will produce the index of the first ! but will start looking at index 3
and stop looking at index 8 - 1
-Rfind - -string method that works the same as str.find(x) but looks for the parameter
in reverse, returning the last occurrence in the string
