python f string dictionary code example
Example 1: python f string
"""
An f-string stands for 'function-string' it's just used to work with
strings more appropiately, they do the exact same job as concantenating
strings but are more efficient and readable.
"""
Age = "25"
print("I am "+Age+" years old.")
Age = 25
print(f"I am {Age} years old.")
Age = "25"
print("I am {} years old.".format(Age))
Age = "25"
Name = "Jeff"
print("I am {} years old, and my name is {}.".format(Age,Name))
Example 2: python f-strings
>>> name = "Fred"
>>> f"He said his name is {name!r}."
"He said his name is 'Fred'."
>>> f"He said his name is {repr(name)}."
"He said his name is 'Fred'."
>>> width = 10
>>> precision = 4
>>> value = decimal.Decimal("12.34567")
>>> f"result: {value:{width}.{precision}}"
'result: 12.35'
>>> today = datetime(year=2017, month=1, day=27)
>>> f"{today:%B %d, %Y}"
'January 27, 2017'
>>> f"{today=:%B %d, %Y}"
'today=January 27, 2017'
>>> number = 1024
>>> f"{number:#0x}"
'0x400'
>>> foo = "bar"
>>> f"{ foo = }"
" foo = 'bar'"
>>> line = "The mill's closed"
>>> f"{line = }"
'line = "The mill\'s closed"'
>>> f"{line = :20}"
"line = The mill's closed "
>>> f"{line = !r:20}"
'line = "The mill\'s closed" '