在python中修改.txt文件中的一行

因此，我试图修改文本文件中符合条件的多行。 该行将以“Section”开头，然后我将对该行进行一些修改，然后我想用新行替换旧行。目前，我的代码看起来像这一行，但我得到以下错误“AttributeError:'str'对象没有属性'write'”

for f in glob.glob('*.svp'):
    print(f)
    with open(f,'r+') as ins:
        fileArray = []
        for line in ins:
            fileArray.append(line)
            if "Section" in line:
                lat = line[26:35]
                lineToKeep = line[:33] #Portion of line without lat.## lon, what will be amended
                latAmended = round(float(lat[7:])*0.6)
                latAmended = str(latAmended).zfill(2)
                lon = line[36:46]
                lonToKeep = lon[:-2]
                lonAmended = round(float(lon[8:])*0.6)
                lonAmended = str(lonAmended).zfill(2)
                goodStuff = lineToKeep + latAmended + ' '+ lonToKeep + lonAmended
                line = goodStuff
            f.write(line)

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请注意，您使用的是文件路径“f”（一个“str”对象），而不是文件对象“ins”本身。更改最后一行的变量可以达到以下目的：

for f in glob.glob('*.svp'):
    print(f)
    with open(f,'r+') as ins:
        fileArray = []
        for line in ins:
            fileArray.append(line)
            if "Section" in line:
                lat = line[26:35]
                lineToKeep = line[:33] #Portion of line without lat.## lon, what will be amended
                latAmended = round(float(lat[7:])*0.6)
                latAmended = str(latAmended).zfill(2)
                lon = line[36:46]
                lonToKeep = lon[:-2]
                lonAmended = round(float(lon[8:])*0.6)
                lonAmended = str(lonAmended).zfill(2)
                goodStuff = lineToKeep + latAmended + ' '+ lonToKeep + lonAmended
                line = goodStuff
            f.write(line)

            ins.write(line)

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变量名和函数名应遵循带有下划线的

小写形式。