文字列の終わりから行末までの文字列の終わりまでのスライシング

Question

「文字列」のスライス方法を理解してから、「文字列」を見つけた後に行全体を取得します。 これは私がこれまでに何をすべきかです：

content.txt : 
#Try to grab this line start 
#Try to grab this line 1 
#Try to grab this line 2 
#Try to grab this line 3 
#Try to grab this line 4 
#Try to grab this line 5 
#Try to grab this line 6 
#Try to grab this line end 
#Try to grab this line 7 
#Try to grab this line 8 

私のスクリプト：

​​

出力result.txt：

start 
    #Try to grab this line 1 
    #Try to grab this line 2 
    #Try to grab this line 3 
    #Try to grab this line 4 
    #Try to grab this line 5 
    #Try to grab this line 6 
    #Try to grab this line 

私は必要な出力は次のようになります。

#Try to grab this line start 
#Try to grab this line 1 
#Try to grab this line 2 
#Try to grab this line 3 
#Try to grab this line 4 
#Try to grab this line 5 
#Try to grab this line 6 
#Try to grab this line end 

ありがとう、私は私のexplを願っていますanationは明らかに どんな助けも大いに評価されるだろう！あなたが行うことができ

Answer 1

：つまり

with open(fname) as f: 
    content = f.readlines() 
# you may also want to remove whitespace characters like `\n` at the end of each line 
content = [x.strip() for x in content] 
# Get the id of the line with "start" 
start_id = [id for id in range(len(content)) if "start" in content[id]][0] 
# Get the id of the line with "end" 
stop_id = [id for id in range(len(content)) if "end" in content[id]][0] 
# Slice our content 
sliced = content[start_id : stop_id+1] 
# And finally, to get your output : 
for line in sliced : 
    print line 
# Or to a file : 
make = open('D:\PROJECT\Python\result.txt', "w") 
for line in sliced : 
    make.write("%s\n" % line)