Python循环并添加到字典中，直到文件中的空白行

Question

我正在尝试添加位置，名称，教室，直到空白从文件使用:

Get-Content in.txt | python school.py

in.txt例子:

supervisor
Jack
1a
1b
2a

supervisor_list = []
supervisor_dict = {}
def user_type():
check_who = input()
if check_who == "supervisor":
name = input()
check_class = input()
supervisor_dict["User"] = check_who
supervisor_dict["Name"] = name
supervisor_dict["School_class"] = check_class
check_class = input()
while not check_class.isspace():
supervisor_dict["School_class"] += " " + check_class
supervisor_list.append(supervisor_dict)
check_class = input()

你能告诉我我做错了什么吗?谢谢!

Answer 1

check_class.isspace()检查字符串是否为空格，如"。如果您想检查一行是否为空，只需使用check_class == '';如果您想接受带有空格的行为空行，则使用check_class.strip() == ''

Answer 2

代码check_class.isspace()将检查字符串是否为空"如果你想检查一行是空的，你可以尝试check_class == ''，如果你想检查字符串是否包含任何空格在它比(' ' in check_class) == True

Answer 3

首先应该运行函数。如果您希望用户通过命令行输入数据，这将是一个可能的解决方案:

supervisor_list = []
supervisor_dict = {}
stop_character = ""

def user_type():
check_who = input()
if check_who == "supervisor":
name = input()
check_class = input()
supervisor_dict["User"] = check_who
supervisor_dict["Name"] = name
supervisor_dict["School_class"] = check_class
while True:
check_class = input()
if check_class == stop_character:
break
supervisor_dict["School_class"] += " " + check_class
supervisor_list.append(supervisor_dict)
user_type()

Answer 4

您可能希望它像这样写

supervisor_list = []
supervisor_dict = {}
def user_type():
check_who = input("Enter user type: ")
if check_who == "supervisor" or check_who == "Supervisor":
name = input("Enter name: ")
check_class = input("Enter class: ")
supervisor_dict["User"] = check_who
supervisor_dict["Name"] = name
supervisor_dict["School_class"] = check_class
while not check_class.isspace():
supervisor_dict["School_class"] += " " + check_class
check_class = input("Enter class: ")
supervisor_list.append(supervisor_dict)

return supervisor_list

Answer 5

你可以修改你的终端参数，让它有一些可以识别的东西，否则你只是用完了行。

这将在末尾或空白行处停止。

(Get-Content in.txt) + '' | python school.py

school.py

supervisor_list = []
def user_type():
supervisor_dict = {
'User': input(),
'Name': input(),
'School_class': input()
}
if supervisor_dict["User"] == "supervisor":
while (check_class := input()):
supervisor_dict["School_class"] += ' ' + check_class
supervisor_list.append(supervisor_dict)
user_type()
print(supervisor_list)

输出:

[{'User': 'supervisor', 'Name': 'Jack', 'School_class': '1a 1b 2a'}]

---

另外，如果我们不能改变输入，让我们继续下去，直到错误，或空白行:

Get-Content in.txt | python school.py

school.py

supervisor_list = []
def user_type():
supervisor_dict = {
'User': input(),
'Name': input(),
'School_class': input()
}
if supervisor_dict["User"] == "supervisor":
while True:
try:
if not (check_class := input()) : break
except EOFError : break   
supervisor_dict["School_class"] += ' ' + check_class
supervisor_list.append(supervisor_dict)  
user_type()
print(supervisor_list)