共享单车数据分析Python代码选城市后卡顿问题修复请求

程序冻结的核心原因 #

你的get_filters()函数里，城市、月份、日期的循环逻辑完全错误，导致输入正确值时触发无限循环，程序卡死：

• 以城市选择为例，当前代码用while True包裹判断，但仅在输入错误时重新输入一次就break，完全没处理「输入正确时退出循环」的逻辑。如果用户第一次输入正确城市名，if city not in CITY_DATA.keys()不成立，循环会一直运行，程序直接冻结。

附带的代码错误 #

除了循环逻辑，还有几处拼写和语法错误会导致功能异常：

• 月份列表里的'faburay'是拼写错误，应为'february'
• 星期列表存在空格和拼写错误：' sunday'（开头多空格）、'tusday'→'tuesday'、'wedensday'→'wednesday'、'thrusday'→'thursday'
• 打印语句写错：prtint应为print

修复后的完整代码 #

import time
import pandas as pd
import numpy as np

CITY_DATA = { 'chicago': 'chicago.csv',
              'new york city': 'new_york_city.csv',
              'washington': 'washington.csv' }

def get_filters():
    """
    Asks user to specify a city, month, and day to analyze.

    Returns:
        (str) city - name of the city to analyze
        (str) month - name of the month to filter by, or "all" to apply no month filter
        (str) day - name of the day of week to filter by, or "all" to apply no day filter
    """
    print('Hello! Let\'s explore some US bikeshare data!')
    # 获取城市输入，循环处理无效输入
    city = input("please choose a city from (chicago , new york city , washington): ").lower()
    while city not in CITY_DATA.keys():
        print("invalid city name please try again: ")
        city = input("please choose a city from (chicago , new york city , washington): ").lower()
    
    # 获取月份输入，循环处理无效输入
    month = input(" please choose and type a full month name or type all: ").lower()
    months = ['january' , 'february' , 'march' , 'april' , 'may' , 'june' , 'all' ]
    while month not in months:
        print("invalid month name please try again")
        month = input(" please choose and type a full month name or type all: ").lower()
    
    # 获取星期输入，循环处理无效输入
    day = input("please add a week day name or type all: ").lower()
    days = ['saturday', 'sunday', 'monday' , 'tuesday', 'wednesday','thursday','friday','all']
    while day not in days:
        print('invalid week day name please try again')
        day = input("please add a week day name or type all: ").lower()

    print('-'*40)
    return city, month, day

关键修改说明 #

1. 循环逻辑修正：将while True改为while 输入值不在有效列表中，这样只要输入正确就自动退出循环，输入错误则持续提示重新输入。
2. 拼写错误修正：修复了月份、星期的拼写错误，去除星期列表里的多余空格。
3. 语法错误修正：把prtint改为正确的print。

内容的提问来源于stack exchange，提问作者Ahmad Frhat