f-string-ify

[Skaperen]

i can't share the real code, but i can make an example. don't make other assumptions about this example. don't try to "solve" it some other way (the "solution" is probably not applicable to other cases)

if case1:
    ...
    foo,bar = ...
    ...
    print(f'foo = {foo!r}  and bar = {bar!r}')
    ...
if case2:
    ...
    foo,bar = ...
    ...
    print(f'foo = {foo!r}  and bar = {bar!r}')
    ...
if case3:
    ...
    foo,bar = ...
    ...
    print(f'foo = {foo!r}  and bar = {bar!r}')
    ...

what i want is something more like:

...
pattern = 'foo = {foo!r}  and bar = {bar!r}'
...
if case1:
    ...
    foo,bar = ...
    ...
    print(fy(pattern))
    ...
if case2:
    ...
    foo,bar = ...
    ...
    print(fy(pattern))
    ...
if case3:
    ...
    foo,bar = ...
    ...
    print(fy(pattern))
    ...

where fy() in this example does the f-string-ify work. there will likely be a suggestion to have a function with the f-string coded once in the function and to call that function in each case, passing the variables to it. but that assumes a trivial set of variables. maybe there are too many. maybe they are unknown. maybe i'd like to read the pattern from a config file.