How do i remove the very first white space from my text file in Python?

Question

with open ('Exporting_data.txt', 'w+') as fp:


fp.write(data_Str)
fp.write('\n'+ labels_Str)

fin = open("Exporting_data.txt", "rt")
fout = open("Exporting_data_new.txt", "wt")

for line in fin:
fout.write(line.replace('preds', ''))

fin.close()
fout.close()

I did this to remove the very first word of my text file (preds) but now it leaves a white space that I don't know how to remove. The text file now looks like that.

 B-Product B-Product B-Product B-Product

from originally,

preds   B-Product B-Product B-Product B-Product 

Answer 1

您可以使用lstrip去除前导空格：

fout.write(line.replace('preds', '').lstrip())

Answer 2

Use .lstrip() +fix indentation+use with :

with open ('Exporting_data.txt', 'w+') as fp:
    fp.write(data_Str)
    fp.write('\n'+ labels_Str)

with open("Exporting_data.txt", "rt") as fin:
    with open("Exporting_data_new.txt", "wt") as fout:
        for line in fin:
            fout.write(line.replace('preds', '').lstrip())