Anaconda Spyder运行Python商业分析程序无报错失败求助

我开发了一款商业分析Python程序，在Anaconda的Spyder环境中运行时无任何错误提示但直接失败，推测可能是循环未闭合类问题但无法定位具体原因。

完整程序代码 #

import pandas as pd
df = pd.read_csv(r"C:\Users\user\Desktop\Small_businesses1.csv",encoding='latin1')
#create start menu
def menu():
    print("Hello!, Welcome to business analysis, how may we help you?")
    print("A) Help you find a local business based on your criteria?")
    print('B) Provide you with performance analytics of businesses and industries around you?')
    print('C) To access and read an excerpt from our data file:')
    print('D) Provide you an exit from the interface')
menu()
option = str(input("Kindly enter your option here: "))    
      
while option != 0:
    if option == "A":
     print="providing you with local businesses now, please input criteria:"
df=pd.read_csv('small businesses.csv')


w=str(input('enter name here'))
df = pd.DataFrame({"name": ['Starz Café','V lounge salon','Swapnil Tyres','Game Dome','Pride Super Shopee','Lifeberries healthcare' ,'365 medical','Mad momoz','Monde Collections','Studio Hub IT','Healer Armis','Tumbledry Laundry','VCF healthclub','Max link Sports','Creamstone' ,"Archie's","Milano's café",'Café old skool','Rebellion Apprel','D.C books','Agrwal Sweets','grocers','Ronak super mart','Vision stationary']})
while (w in df):
    print(w)
    if w=='':
     break
if w!=0:
    print("Please enter a valid input from the given list")

x=str(input('enter field here'))
df = pd.DataFrame({"field": ['Food & Hospitality','Beauty, health, fitness','Automotive Repair','Sports & Recreation','General Retail','Medical Services','Medical Services (pharmacy)','Food & Hospitality','General Retail','Technology','Medical services','Cleaning and Maintance','Health, beauty and Fitness','Health, beauty and Fitness','Food & Hospitality','General Retail','Food & Hospitality','Food & Hospitality','General Retail','Stationary & Education','Food & Hospitality','General Retail','General Retail','Stationary & Education']})
while (x in df):
    print(x)
    if x=='':
     break
if x!=0:
    print("Please enter a valid input from the given list")

y=str(input('enter desired operation size here'))
df = pd.DataFrame({"operation size": ['Very small','Moderate-Large' ,'Moderate' ,'Moderate' ,'Small','Moderate' ,'Small','Moderate' ,'Small','Small','Small','Large','Moderate' ,'Moderate' ,'Moderate' ,'Large','Small','Small','Small','Small','Small','Medium','Small','Small']})
while (y in df):
    print(y)
    if y=='':
     break
if y!=0:
    print("Please enter a valid input from the given list")
    
z=str(input('enter preferred mode of service here'))
df = pd.DataFrame({"mode of service": ['Physical dine-in/Online delivery','Physical service','Physical service, Home service','Physcial service','Physical service, Home service','Physical service, Online diagnosis','Physical service','Online delivery','Physical service/remote sevice','Remote/online service','Physical service/diagnosis','Physical service/remote sevice','Physical','Physical','Physical service','Physcial service','Physcial service, Online delivery','Physical service, Online Delivery','Online delivery','Physical service, Home service','Physical service, Home service','Physical service, Home service','Physical service, Home service','Physical service, Home service']})
while (z in df):
    print(z)
    if z=='':
     break
if z!=0:
    print("Please enter a valid input from the given list")
    
if w == '':
    print (x + y + z)
if x == "":
    print(w + y + z)
elif y == "":
    print(w + x + z)
elif z == "":
    print(w + x + y)
elif x == "" and y == "":
   print(w + z)
elif x == "" and z == "":
    print(w + y)
elif y == "" and z == "":
    print(w + x)
elif w == "" and x == "":
    print(y + z)
elif w == "" and z == "":
    print(x + y)
elif w == "" and y == "":
    print(x + z)
    
    
if option == "B":
        #do option B stuff here 
        
        if option == "C" :
          import csv
          f=open('smallbusinesses.csv', 'rt')
          myReader = csv.reader(f)
          for row in myReader:
             print(row)
             
             if option == "D":
                 print("Thank you for using our interface!")
            
        menu()
        option = str(input('kindle enter your option here:'))
            

print="providing you with local businesses now, please input criteria:"

关联CSV文件截图 #

已定位的问题点 #

• 缩进严重错误：while option != 0: 下方所有代码都没有缩进，导致循环体只有if option == "A":一行，后续逻辑完全脱离循环，程序执行完这行判断后直接跑后续的输入逻辑，不符合预期的菜单交互流程
• 内置函数被覆盖：多处出现print="providing you with local businesses now, please input criteria:"这类写法，直接把Python内置的打印函数print赋值成了字符串，后续所有print()调用都会失效，这也是看不到任何报错的核心原因之一
• 类型匹配错误：option是通过str(input())拿到的字符串类型，循环终止条件写的是while option != 0，0是整型，二者永远不相等，循环会无限执行，也不可能正常触发退出逻辑
• DataFrame取值判断逻辑错误：while (w in df)这类写法，实际是判断输入值是否在DataFrame的列名列表中，而不是判断输入值是否在对应列的取值里，完全不符合校验输入是否在给定商家/行业列表中的业务需求
• 条件嵌套逻辑完全错误：option == "B"的代码块里嵌套了option == "C"、option == "D"的判断，同一时间option只能取一个值，选中B之后永远不可能触发C、D的逻辑
• 文件路径不统一：代码中先后三次读取csv文件，路径分别是C:\Users\user\Desktop\Small_businesses1.csv、small businesses.csv、smallbusinesses.csv，路径完全不统一，大概率会触发文件找不到的报错，只是因为print函数被覆盖看不到报错信息
• 输入校验逻辑错误：if w!=0这类判断中，w是字符串类型，和整型0比较永远返回True，不管用户输入什么内容都会提示“请输入给定列表中的有效值”

内容的提问来源于stack exchange，提问作者Shash