>>> x = 13.949999999999999999
>>> x
13.95
>>> g = float("{:.2f}".format(x))
>>> g
13.95
>>> x == g
True
>>> h = round(x, 2)
>>> h
13.95
>>> x == h
TrueNumber Format Output Description
3.1415926 {:.2f} 3.14 Format float 2 decimal places
3.1415926 {:+.2f} +3.14 Format float 2 decimal places with sign
-1 {:+.2f} -1.00 Format float 2 decimal places with sign
2.71828 {:.0f} 3 Format float with no decimal places
5 {:0>2d} 05 Pad number with zeros (left padding, width 2)
5 {:x<4d} 5xxx Pad number with x’s (right padding, width 4)
10 {:x<4d} 10xx Pad number with x’s (right padding, width 4)
1000000 {:,} 1,000,000 Number format with comma separator
0.25 {:.2%} 25.00% Format percentage
1000000000 {:.2e} 1.00e+09 Exponent notation
13 {:10d} 13 Right aligned (default, width 10)
13 {:<10d} 13 Left aligned (width 10)
13 {:^10d} 13 Center aligned (width 10)# There are 3 different types of formatting.
>>> name = "John"
>>> age = 19
>>> language = "python"
>>> print(f"{name} of age {age} programs in {language}") # Commonly used.
John of age 19 programs in python
>>> print("%s of age %d programs in %s" %(name, age, language)) # %s for str(), %d for int(), %f for float().
John of age 19 programs in python
>>> print("{} of age {} programs in {}".format(name, age, language)) # Values inside .format() will be placed inside curly braces repectively when no index is specified.
John of age 19 programs in python
>>> print("{2} of age {1} programs in {0}".format(name, age, language)) # Index can be specified inside of curly braces to switch the values from .format(val1, val2, val3).
python of age 19 programs in John# Python string арга .format() нь мөр дэх хоосон хаалт ({}) орлуулагчийг аргументуудаараа сольдог.
# Түлхүүр үгсийг орлуулагчид заасан бол аргын харгалзах нэртэй аргументуудаар солино.
msg1 = 'Fred scored {} out of {} points.'
msg1.format(3, 10)
# => 'Fred scored 3 out of 10 points.'
msg2 = 'Fred {verb} a {adjective} {noun}.'
msg2.format(adjective='fluffy', verb='tickled', noun='hamster')
# => 'Fred tickled a fluffy hamster.'# Python string format() method
# default(implicit) order
default_order = "{}, {} and {}".format('John','Bill','Sean')
print('\n--- Default Order ---')
print(default_order)
# order using positional argument
positional_order = "{1}, {0} and {2}".format('John','Bill','Sean')
print('\n--- Positional Order ---')
print(positional_order)
# order using keyword argument
keyword_order = "{s}, {b} and {j}".format(j='John',b='Bill',s='Sean')
print('\n--- Keyword Order ---')
print(keyword_order)>>> nombre = 357568.12312
>>> nombre2 = 568.568768
>>> nombre3 = -34.3432
>>> nombre4 = 23
>>> print(f'{nombre : >+20_.4f} {nombre2 : >+20_.4f}')
>>> print(f'{nombre3 : >+20_.4f} {nombre4 : >+20_.4f}')
+357_568.1231 +568.5688
-34.3432 +23.0000