如何在不使用python逐行搜索的情况下替换文件中的文本？

Question

示例：

file1.txt包含1000行文本，无需逐行搜索，我需要替换它们

aaaa bbbbb cccc
asdfd raj ccc
ksdhfkj kjhkjh kjhkjh
raj

需要将 raj 替换为 shatish

aaaa bbbbb cccc
asdfd sathish ccc
ksdhfkj kjhkjh kjhkjh
sathish

是否可以替换而无需逐行搜索

Answer 1

也许：

with open("textfile","r") as fi, open("outfile","w") as fo:
    fo.write(fi.read().replace("raj","sathish"))