这篇文章会很长，但这里什么都没有。
我正在编写一个管理配置文件的程序片段。该配置文件包含账单和发货地址，以及信用卡号码。它们从一个通用文件导入，这个文件看起来像这样：
[
{
"name": "test-0-2-21",
"size": "",
"profileGroup": "",
"billingAddress": {
"name": "yes sir",
"email": "yessir@gmail.com",
"phone": "1111111111",
"line1": "11 Garden Place",
"line2": "11",
"line3": "",
"postCode": "07960",
"city": "Chatham",
"country": "United States",
"state": "New Jersey"
},
"shippingAddress": {
"name": "yes sir",
"email": "yessir@gmail.com",
"phone": "1111111111",
"line1": "11 Garden Place",
"line2": "11",
"line3": "",
"postCode": "07960",
"city": "Chatham",
"country": "United States",
"state": "New Jersey"
},
"paymentDetails": {
"nameOnCard": "yeet",
"cardType": "",
"cardNumber": "1111111111111111",
"cardExpMonth": "12",
"cardExpYear": "2023",
"cardCvv": "321"
},
"sameBillingAndShippingAddress": true,
"onlyCheckoutOnce": false,
"matchNameOnCardAndAddress": false
}
]
我的代码如下：
import os
import json
def profile_list():
parent_dir = os.getcwd()
created_dir = r"Profiles"
script_dir = parent_dir + created_dir
checklist_path = os.path.join(script_dir, "Profiles.txt")
try:
checklist_file = open(checklist_path, "r")
profile_list = checklist_file.read()
print(profile_list)
user_input()
except IndexError:
print("err")
def user_input():
def edit_handler():
profile_editor()
def exec_handler():
print("yay 2")
def import_handler():
importer()
print("what do you want to do?")
question = input(" n type [1] to view/edit/create profiles, n type [2] to execute a profile, n "
"type [3] to import/export profiles. n n $")
handlers = {
'1': edit_handler,
'2': exec_handler,
'3': import_handler
}
if question in handlers:
handlers[question]()
else:
print("Unknown choice", question)
def viewer():
parent_dir = os.getcwd()
created_dir = r"Profiles"
script_dir = parent_dir + created_dir
profiles_path = os.path.join(script_dir, "Profiles.txt")
try:
with open(profiles_path, "r") as profile_file:
profile_list = profile_file.read()
print(profile_list)
except IndexError:
print("err")
opening_question = input("please type the name of the profile you would like to enter. (case sensitive) n n $")
file_name = opening_question
file_extension = ".txt"
file_dir = file_name + file_extension
with open(profiles_path, 'r'):
if opening_question in profile_list:
with open(file_dir) as open_file:
file_content = json.load(open_file)
json_dump = json.dumps(file_content, indent=2)
print(json_dump)
else:
print("Unknown choice", opening_question)
def profile_editor():
def view_handler():
viewer()
def edit_handler():
print("yay 2")
def create_handler():
print("to profile file")
print("what do you want to do?")
question = input(" n type [1] to view a profile, n type [2] to edit a profile, n "
"type [3] to create/delete profiles. n n $")
handlers = {
'1': view_handler,
'2': edit_handler,
'3': create_handler
}
if question in handlers:
handlers[question]()
else:
print("Unknown choice", question)
def importer():
def setup():
question = input("please enter the directory of the .json file you want to import. n "
"(this is the exact system directory, for example, [C:<user_folders>Downloads])n "
"DO NOT INCLUDE THE FILE IN THIS DIRECTORY n n $")
question2 = input("please enter the name of the file, including the .json extension. (for example, "
"[aycd.json])n n $")
file_name = "\" + question2
file_name.strip()
directory = question + file_name
directory = directory.strip()
def import_confirmation():
import_conformation = input("type [y] to import, type [n] to cancel. n n $")
if import_conformation == "y":
print("transferring")
convert()
elif import_conformation == "n":
print("canceling...")
user_input()
else:
print("unknown answer:", import_conformation)
profile_name = [2]
with open(directory, 'r') as importing_file:
for position, line in enumerate(importing_file):
line = line.strip()
if position in profile_name:
print("is this the name of the correct profile?")
print("------------------------------------------")
print(line)
print("------------------------------------------")
import_hotswap = open("import_hotswap.txt", "w")
import_hotswap.write(directory)
import_hotswap.close()
import_confirmation()
else:
pass
def convert():
readline_profilename = [2]
readline_billing_name = [6]
readline_billing_email = [7]
readline_billing_phone = [8]
readline_billing_line1 = [9]
readline_billing_line2 = [10]
readline_billing_line3 = [11]
readline_billing_postcode = [12]
readline_billing_city = [13]
readline_billing_country = [14]
readline_billing_state = [15]
readline_shipping_name = [18]
readline_shipping_email = [19]
readline_shipping_phone = [20]
readline_shipping_line1 = [21]
readline_shipping_line2 = [22]
readline_shipping_line3 = [23]
readline_shipping_postcode = [24]
readline_shipping_city = [25]
readline_shipping_country = [26]
readline_shipping_state = [27]
readline_card_name = [30]
readline_card_type = [31]
readline_card_number = [32]
readline_card_expmonth = [33]
readline_card_expyear = [34]
readline_card_ccv = [35]
readline_samebillingandshippingadress = [37]
readline_onlycheckoutonce = [38]
readline_matchnameoncardadress = [39]
profile_name_question = input("what do you want to call this profile? (do not include the extension)n n $")
parent_dir = os.getcwd()
created_dir = r"Profiles"
script_dir = parent_dir + created_dir
profiles_path = os.path.join(script_dir, "Profiles.txt")
new_profile = profile_name_question + ".txt"
new_profile = new_profile.strip()
new_profile_path = os.path.join(script_dir, new_profile)
import_hotswap = open("import_hotswap.txt", "r")
importing_file_path = import_hotswap.read()
import_hotswap.close()
try:
with open(profiles_path, "a") as profile_file:
profile_file.write(profile_name_question + "n")
profile_file.close()
with open(profiles_path, "r") as profile_file:
profile_list = profile_file.read()
print(profile_list)
profile_file.close()
except IndexError:
print("err")
try:
with open(importing_file_path, "r") as importing_file:
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_name:
billing_name = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_email:
billing_email = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_phone:
billing_phone = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_line1:
billing_line1 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_line2:
billing_line2 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_line3:
billing_line3 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_postcode:
billing_postcode = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_city:
billing_city = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_country:
billing_country = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_state:
billing_state = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_name:
shipping_name = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_email:
shipping_email = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_phone:
shipping_phone = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_line1:
shipping_line1 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_line2:
shipping_line2 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_line3:
shipping_line3 = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_postcode:
shipping_postcode = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_city:
shipping_city = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_country:
shipping_country = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_shipping_state:
shipping_state = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_name:
card_name = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_type:
card_type = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_number:
card_number = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_expmonth:
card_expmonth = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_expyear:
card_expyear = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_card_ccv:
card_ccv = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_samebillingandshippingadress:
samebillingandshippingadress = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_onlycheckoutonce:
onlycheckoutonce = line
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_matchnameoncardadress:
matchnameoncardadress = line
with open(new_profile_path, "a") as new_profile:
new_profile.write(profile_name_question + "n")
new_profile.write(billing_name + "n")
new_profile.write(billing_email + "n")
new_profile.write(billing_phone + "n")
new_profile.write(billing_line1 + "n")
new_profile.write(billing_line2 + "n")
new_profile.write(billing_line3 + "n")
new_profile.write(billing_postcode + "n")
new_profile.write(billing_city + "n")
new_profile.write(billing_country + "n")
new_profile.write(billing_state + "n")
new_profile.close()
if samebillingandshippingadress == '"sameBillingAndShippingAddress": false,"':
new_profile = open(new_profile_path, "a")
new_profile.write(shipping_name + "n")
new_profile.write(shipping_email + "n")
new_profile.write(shipping_phone + "n")
new_profile.write(shipping_line1 + "n")
new_profile.write(shipping_line2 + "n")
new_profile.write(shipping_line3 + "n")
new_profile.write(shipping_postcode + "n")
new_profile.write(shipping_city + "n")
new_profile.write(shipping_country + "n")
new_profile.write(shipping_state + "n")
new_profile.close()
elif samebillingandshippingadress == '"sameBillingAndShippingAddress": true,':
pass
else:
print("error reading file: same billing and shipping adress is unclear. check importing file. "
"continuing anyway")
if matchnameoncardadress == '"matchNameOnCardAndAddress": true':
new_profile = open(new_profile_path, "a")
new_profile.write("card name:", billing_name + "n")
new_profile.write(card_type + "n")
new_profile.write(card_number + "n")
new_profile.write(card_expmonth + "n")
new_profile.write(card_expyear + "n")
new_profile.write(card_ccv + "n")
new_profile.close()
elif matchnameoncardadress == '"matchNameOnCardAndAddress": false':
new_profile = open(new_profile_path, "a")
new_profile.write(card_name + "n")
new_profile.write(card_type + "n")
new_profile.write(card_number + "n")
new_profile.write(card_expmonth + "n")
new_profile.write(card_expyear + "n")
new_profile.write(card_ccv + "n")
new_profile.close()
else:
print("error reading file: match name on card and adress is unclear. check importing file. "
"continuing anyway")
except IndexError:
print("there was an error somewhere. "
"please check that your file is correctly formatted and has all 42 lines.")
setup()
i运行时，我得到一个错误，看起来像这样：
File "C:UsersnichoDocumentsPython stuffPLTNMprofile_manager.py", line 316, in convert
new_profile.write(billing_email)
UnboundLocalError: local variable 'billing_email' referenced before assignment
我发现了其他与此类似的帖子，他们说使用global或nonlocal来提供帮助，但他们的示例都不足以实现答案。通过遵循上下文，我在第202行中定义billing_email，并在第316行中使用它。有人能解释一下它为什么会这样做吗？任何帮助都将不胜感激。
除非在每个循环之前查找到开头，否则不能多次迭代文件对象。当您遍历一个文件对象时，您从上次读取结束的地方开始；如果那是一个完整的迭代，那么你从结尾开始，所以没有什么可读的了。
所以只有第一个
for position, line in enumerate(importing_file):
循环正在处理该文件。它们中的其余部分根本不迭代，因此没有一个分配变量。
你应该只有一个循环，像这样：
for position, line in enumerate(importing_file):
line = line.strip()
if position in readline_billing_name:
billing_name = line
elif position in readline_billing_email:
billing_email = line
elif position in readline_billing_phone:
billing_phone = line
elif position in readline_billing_line1:
billing_line1 = line
elif position in readline_billing_line2:
billing_line2 = line
elif position in readline_billing_line3:
billing_line3 = line
elif position in readline_billing_postcode:
billing_postcode = line
elif position in readline_billing_city:
billing_city = line
elif position in readline_billing_country:
billing_country = line
elif position in readline_billing_state:
billing_state = line
elif position in readline_shipping_name:
shipping_name = line
elif position in readline_shipping_email:
shipping_email = line
elif position in readline_shipping_phone:
shipping_phone = line
elif position in readline_shipping_line1:
shipping_line1 = line
elif position in readline_shipping_line2:
shipping_line2 = line
elif position in readline_shipping_line3:
shipping_line3 = line
elif position in readline_shipping_postcode:
shipping_postcode = line
elif position in readline_shipping_city:
shipping_city = line
elif position in readline_shipping_country:
shipping_country = line
elif position in readline_shipping_state:
shipping_state = line
elif position in readline_card_name:
card_name = line
elif position in readline_card_type:
card_type = line
elif position in readline_card_number:
card_number = line
elif position in readline_card_expmonth:
card_expmonth = line
elif position in readline_card_expyear:
card_expyear = line
elif position in readline_card_ccv:
card_ccv = line
elif position in readline_samebillingandshippingadress:
samebillingandshippingadress = line
elif position in readline_onlycheckoutonce:
onlycheckoutonce = line
elif position in readline_matchnameoncardadress:
matchnameoncardadress = line