Librería fileinput (itera sobre lines de multiples streams)

• Última modificación: Mayo 14, 2022

import fileinput
import glob

!mkdir /tmp/demo

mkdir: cannot create directory ‘/tmp/demo’: File exists

%%writefile /tmp/demo/text0.txt
line 0 0
line 0 1
line 0 2
line 0 3

Overwriting /tmp/demo/text0.txt

%%writefile /tmp/demo/text1.txt
line 1 0
line 1 1
line 1 2

Overwriting /tmp/demo/text1.txt

%%writefile /tmp/demo/text2.txt
line 2 0
line 2 1

Overwriting /tmp/demo/text2.txt

files = glob.glob('/tmp/demo/*.txt')
files

['/tmp/demo/text1.txt', '/tmp/demo/text0.txt', '/tmp/demo/text2.txt']

print('filename                   file  line     file          text')
print('                     descriptor    no  line no')
print('------------------------------------------------------------')

with fileinput.input(files=files) as f:
    for line in f:
        line = line.replace('\n', '')
        print(
            f"{f.filename()}          {f.fileno()}     {f.lineno()}         {f.filelineno()}  -> {line}"
        )

filename                   file  line     file          text
                     descriptor    no  line no
------------------------------------------------------------
/tmp/demo/text1.txt          55     1         1  -> line 1 0
/tmp/demo/text1.txt          55     2         2  -> line 1 1
/tmp/demo/text1.txt          55     3         3  -> line 1 2
/tmp/demo/text0.txt          55     4         1  -> line 0 0
/tmp/demo/text0.txt          55     5         2  -> line 0 1
/tmp/demo/text0.txt          55     6         3  -> line 0 2
/tmp/demo/text0.txt          55     7         4  -> line 0 3
/tmp/demo/text2.txt          55     8         1  -> line 2 0
/tmp/demo/text2.txt          55     9         2  -> line 2 1