AttributeError：__getitem__在Python代码中

Question

我正在尝试打开一个名为filteredApps.txt的文本文件，其中包含“ app1.ear，app2.ear，app3.ear，app4.ear”作为新行，将其传递到列表中，然后将其与另一个列表进行比较。 然后，最后在main（）方法中调用deploy函数，但是在下面代码中突出显示的行中，我得到AttributeError： getitem ：

appNames = ['/opt/app1.ear', '/opt/app2.ear', '/opt/app3.ear', '/opt/app4.ear']

def filteredApps():
    filteredAppsList = []
    appToDeploy = open("filteredApps.txt","r")
    for deploy in appToDeploy:   #Code breaks here
        filteredAppsList.append(deploy)
    return map(str.strip, filteredAppsList)

def main():
    finalListToDeploy = []
    listToDeploy = filteredApps() #Code breaks here as well

    for paths in appNames:
        for apps in listToDeploy:
            if apps in paths:
                finalListToDeploy.append(apps)
    deployApplication(finalListToDeploy)

if __name__ == "__main__":
    main()

Answer 1

从评论继续：

filteredApps.txt：

app1
app2
app3
app4

因此 ：

appNames = ['/opt/app1.ear', '/opt/app2.ear', '/opt/app3.ear', '/opt/app4.ear']

def filteredApps():
    filteredAppsList = []
    with open("filteredApps.txt","r") as appToDeploy:
      for apptodeploy in appToDeploy:
          # print(apptodeploy)
          filteredAppsList.append(apptodeploy)
    return map(str.strip, filteredAppsList)

def main():
    finalListToDeploy = []
    listToDeploy = list(filteredApps())
    for paths in appNames:
        for apps in listToDeploy:
            if apps in paths:
                # print(paths)
                finalListToDeploy.append(paths)
    return finalListToDeploy
    # deployApplication(finalListToDeploy)

if __name__ == "__main__":
    print(main())

输出 ：

['/opt/app1.ear', '/opt/app2.ear', '/opt/app3.ear', '/opt/app4.ear']

Answer 2

在遍历数据之前尝试读取文件

 appToDeploy = open("filteredApps.txt","r") 
 contents = appToDeploy.readlines()
 appToDeploy.close()

 for deploy in contents:     
     filteredAppsList.append(deploy)

Answer 3

尝试按以下方式使用open：

import io
from io import open
with open('tfilteredApps.txt', 'r', encoding='utf-8') as file :    
    for deploy in file :
        filteredAppsList.append(deploy)

但是，如果您在一行中拥有所有应用程序名称，则使用pickle模块会像这样：

import pickle
with open('tfilteredApps.txt', 'r', encoding='utf-8') as file :
    word = pickle.load(file)
filteredAppsList = word.split(' ')