Python f-String/format中的字符串对齐

list 左对齐输出

for line in [[1, 128, 1298039], [123388, 0, 2]]:
   ...:     print('{:>8} {:>8} {:>8}'.format(*line))
   ...:
   ...:
       1      128  1298039
  123388        0        2

左右对齐

print(
    ...:     f"{'Trades:':<15}{2034:>10}",
    ...:     f"
{'Wins:':<15}{1232:>10}",
    ...:     f"
{'Losses:':<15}{1035:>10}",
    ...:     f"
{'Breakeven:':<15}{37:>10}",
    ...:     f"
{'Win/Loss Ratio:':<15}{1.19:>10}",
    ...:     f"
{'Mean Win:':<15}{0.381:>10}",
    ...:     f"
{'Mean Loss:':<15}{-0.395:>10}",
    ...:     f"
{'Mean:':<15}{0.026:>10}",
    ...: )
Trades:              2034
Wins:                1232
Losses:              1035
Breakeven:             37
Win/Loss Ratio:      1.19
Mean Win:           0.381
Mean Loss:         -0.395
Mean:               0.026

In [11]:

Example 1 使用 "<" 左对齐

for line in [[1222222, "timestamp=1626749571096,values=80"], [123388, "timestamp=1626749571096,values=80"]]:
   ...:     print('{:<20} {:<50}'.format(*line))
   ...:
1222222              timestamp=1626749571096,values=80
123388               timestamp=1626749571096,values=80

Example 2 : 使用 ">" 右对齐

for line in [[1222222, "timestamp=1626749571096,values=80"], [123388, "timestamp=1626749571096,values=80"]]:
   ...:    ...:     print('{:>20} {:<50}'.format(*line))
   ...:
             1222222 timestamp=1626749571096,values=80
              123388 timestamp=1626749571096,values=80

Example 3 : 使用 "^" 中间对其

for line in [[1222222, "timestamp=1626749571096,values=80000000333"], [123388, "timestamp=1626749571096,values=802"]]:
   ...:     print('{:^20} {:^80}'.format(*line))
   ...:
      1222222                           timestamp=1626749571096,values=80000000333
       123388                               timestamp=1626749571096,values=802

Example 5 : 对其方式打印list

In [8]: names = ['Raj', 'Shivam', 'Shreeya', 'Kartik']
   ...: marks = [7, 9, 8, 5]
   ...: div = ['A', 'A', 'C', 'B']
   ...: id = [21, 52, 27, 38]

In [9]: for i in range(0, 4):
   ...:     print(f"{names[i] : <10}{marks[i] : ^10}{div[i] : ^10}{id[i] : >5}")
   ...:
Raj           7         A        21
Shivam        9         A        52
Shreeya       8         C        27
Kartik        5         B        38

In [10]:

使用python-tabulate

python-tabulate 支持多种格式，详细请参考github

pip install tabulate

>>> from tabulate import tabulate

>>> table = [["Sun",696000,1989100000],["Earth",6371,5973.6],
...          ["Moon",1737,73.5],["Mars",3390,641.85]]
>>> print(tabulate(table))
-----  ------  -------------
Sun    696000     1.9891e+09
Earth    6371  5973.6
Moon     1737    73.5
Mars     3390   641.85
-----  ------  -------------

参考：

https://stackoverflow.com/questions/8234445/format-output-string-right-alignment

https://github.com/astanin/python-tabulate

https://www.geeksforgeeks.org/string-alignment-in-python-f-string/