如何通过在python中找到一个关键字来控制多行？

Question

我正在阅读一个 python 文件，我想找到有一个：“””注释的行。找到它之后，我希望该 python 文件中的以下行获取一些 html 代码，直到结束引号“” "的评论。

Python 文件示例：

"""

Some comment in this area 

Another line with comment

Some more
More

"""

def main():
    var = something 
    file = somefile
    for i in x:

我尝试过但没有真正工作的代码：

def main():
    file = open("pythonfile.py","r")
    infile = file.readlines()
    flag = False

    for line in infile:

        while len(line) > 0:

            if flag:
                index = line.find("\'\'\'")

                if index < 0:
                    print("<span style=\"color: green;\">",line[:],"</span>",end="")
                    flag = True
                    line = ""

                else:
                    print("<span style=\"color: green;\">",line[0:index+3],"</span>",end="")
                    flag = False
                    line = line[index+3:]  

它说：如果索引

输出应如下所示

<span style=\"color: green;\">"""</span>

<span style=\"color: green;\">Some comment in this area </span>

<span style=\"color: green;\">Another line with comment</span>

<span style=\"color: green;\">Some more</span>
<span style=\"color: green;\">More</span>

<span style=\"color: green;\">"""</span>

def main():
    var = something 
    file = somefile
    for i in x:

Answer 1

file = open("pythonfile.py" ,"r")
infile = file.readlines()
flag = False
# headop = True

for line in infile:
    line2=line
    if line[-1]=='\n':
        line2=line[:-1]
    index=line2.find("\"\"\"")
    if index>=0:
        index2 = line2[index+3:].find("\"\"\"")
        if index2>=0:
            index2+=(index+3)
    else:
        index2=-1
    if index<0:
        if flag:
            print("<span style=\"color: green;\">" ,line2 ,"</span>", sep="")
        else:
            print(line2)
    else:
        if flag:
            print("<span style=\"color: green;\">" ,line2[0:index+3] ,"</span>", end="", sep="")
            if index2<0:
                print(line2[index+3:])
                flag=False
            else:
                print(line2[index+3:index2], end="")
                print("<span style=\"color: green;\">" ,line2[index2:] ,"</span>", sep="")
                flag=True
        else:
            print(line2[0:index], end="")
            if index2<0:
                print("<span style=\"color: green;\">" ,line2[index:] ,"</span>", sep="")
                flag=True
            else:
                print("<span style=\"color: green;\">" ,line2[index:index2+3] ,"</span>", end="", sep="")
                print(line2[index2+3:])
                flag=False

输出是

<span style="color: green;">"""</span>
<span style="color: green;"></span>
<span style="color: green;">Some comment in this area</span>
<span style="color: green;"></span>
<span style="color: green;">Another line with comment</span>
<span style="color: green;"></span>
<span style="color: green;">Some more</span>
<span style="color: green;">More</span>
<span style="color: green;"></span>
<span style="color: green;">"""</span>

def main():
    <span style="color: green;">""" this is a test</span>
<span style="color: green;">     in code block """</span>
    var = 'something'
    var2 = <span style="color: green;">"""different"""</span>
    var3 = <span style="color: green;">"""diff1"""</span>
    file = 'somefile'
    for i in range(10):
        print("i=",i)
    str = <span style="color: green;">""" this is a test</span>
<span style="color: green;">            and test and test. """</span>
    print("str=",str)

<span style="color: green;">""" call main() """</span>
main()