I have an array of 10 elements and I can each of the elements print on a new line formatted 6.2f with
print(f'{myArray:6.2f}', sep="\n")
But I would like to create string containing what needs to be printed, add a few things and print that string, like:
text = 'something ' + f'{myArray:6.2f}' + ' rest' print(text) How can I make that each element of myArray will be on a new line and formatted in text?
You can try this:
for item in myArray: print (f'something {item:6.2f} rest', sep="\n")) Try:
arr=map(float, range(1,11)) print('\n'.join([f'something {item:6.2f} rest' for item in arr])) Prints:
something 1.00 rest something 2.00 rest something 3.00 rest something 4.00 rest something 5.00 rest something 6.00 rest something 7.00 rest something 8.00 rest something 9.00 rest something 10.00 rest 
[[1.23,3.45,6.78],[9.10,10.23,11.22],...]?Make a template and apply it elementwise. Format & f-string notation do not require an explicit cast to string which make them preferable wrt an explicit string join, str.join.
Notice that for the f-string notation {} are escaped by nesting them {{}}. Then, to use format, you need a further nested pair.
You can pass your own element separator to the print to customize, with no extra manipulation, the final output.
myArray = [[1.23456, 2.4680, 13.579], [1, 2, 3]] sf = 6 # significant figures dp = 2 # decimal places apply_float_pattern = f"{{:{sf}.{dp}f}}".format el_SEP = ', ' line_SEP = '\n' # method 1 for a in myArray: print(*map(apply_float_pattern, a), sep=el_SEP) Ouptut
1.23, 2.47, 13.58 1.00, 2.00, 3.00 or by constructing a single string representing the whole output
# method 2 output = line_SEP.join(el_SEP.join(map(apply_float_pattern, a)) for a in myArray) print(output) 