如何在单次print调用中输出f-string等内容且各元素自动换行分隔

问题原因 #

Python内置print()函数默认使用空格作为多个输入参数的分隔符，因此你传入的所有内容会被空格拼接后输出。

方法1：直接指定分隔符为换行符 #

最简单的实现方式是给print()添加sep='\n'参数，指定多个内容之间用换行符分隔：

print(
    f'Revenue as stated in the General Journal is ${a}',
    f'Revenue as stated in the Transaction Table is ${b}',
    f'Revenue is overstated by ${c}',
    rt.info(),
    rtrtl.info(),
    rt.head(10),
    rtrtl.head(10),
    sep='\n'
)

注意：pandas对象的info()方法本身会直接向控制台输出内容，返回值为None，如果直接放在print()参数中，会在对应位置额外打印None。

方法2：统一捕获pandas输出后打印（无多余None） #

如果你需要把info()的输出也和其他内容统一按行打印，可以先捕获info()的输出内容再传入print()：

import io
# 捕获rt.info的输出
rt_buf = io.StringIO()
rt.info(buf=rt_buf)
rt_info_str = rt_buf.getvalue()

# 捕获rtrtl.info的输出
rtrtl_buf = io.StringIO()
rtrtl.info(buf=rtrtl_buf)
rtrtl_info_str = rtrtl_buf.getvalue()

print(
    f'Revenue as stated in the General Journal is ${a}',
    f'Revenue as stated in the Transaction Table is ${b}',
    f'Revenue is overstated by ${c}',
    rt_info_str,
    rtrtl_info_str,
    rt.head(10),
    rtrtl.head(10),
    sep='\n'
)

内容的提问来源于stack exchange，提问作者Johnnyduke