print() doesn't accept the double starred expression *v and f-strings doesn't accept the single and double starred expression *v and **v #137799
Description
Bug report
Bug description:
print() accepts the single starred expression *v as shown below:
v = ['A', 'B', 'C', 'D', 'E']
print(*v)
# A B C D EBut print() doesn't accept the double starred expression **v as shown below:
v = {'name':'John', 'age':36}
print(**v)
# TypeError: 'name' is an invalid keyword argument for print()So, print() should accept the double starred expression **v, displaying the output as shown below:
v = {'name':'John', 'age':36}
print(**v)
# name:John age:36And, f-strings doesn't accept the single and double starred expression *v and **v as shown below:
v = ['A', 'B', 'C', 'D', 'E']
print(f'{*v}')
print(f'{*v=}')
# SyntaxError: can't use starred expression herev = {'name':'John', 'age':36}
print(f'{**v}')
print(f'{**v=}')
# SyntaxError: f-string: expecting a valid expression after '{'So, f-strings should accept the single and double starred expression *v and **v, displaying the outputs as shown below:
v = ['A', 'B', 'C', 'D', 'E']
print(f'{*v}')
# A B C D E
print(f'{*v=}')
# *v=A B C D Ev = {'name':'John', 'age':36}
print(f'{**v}')
# name:John age:36
print(f'{**v=}')
# **v=name:John age:36CPython versions tested on:
3.12
Operating systems tested on:
Windows