标签: nameerror

好吧这是我的最后一个问题,所以我终于找到一个打印好的api,但是我的问题是我得到错误,如果有人可以为我看这个并告诉我什么是错的那将是伟大的

import urllib
import json

request = urlopen("http://api.exmaple.com/stuff?client_id=someid&client_secret=randomsecret")
response = request.read()
json = json.loads(response)
if json['success']:
     ob = json['response']['ob']
     print ("The current weather in Seattle is %s with a temperature of %d") % (ob['weather'].lower(), ob['tempF'])
else:
     print ("An error occurred: %s") % (json['error']['description'])
request.close()

这是错误

Traceback (most recent call last):
File "thing.py", line 4, in <module>
request = urlopen("http://api.exmaple.com/stuff?client_id=someid&client_secret=randomsecret")
NameError: name 'urlopen' is not defined

当我进入

username = str(input("Username:"))

password = str(input("Password:"))

运行程序后,我用我的名字输入输入并按回车键

username = sarang

我收到了错误

NameError: name 'sarang' is not defined

我试过了

username = '"{}"'.format(input("Username:"))

和

password = '"{}"'.format(input("Password:"))

但我最终得到了同样的错误.

如何将输入转换为字符串并修复错误？

我正在关注https://blog.patricktriest.com/analyzing-cryptocurrencies-python/ 上的教程，但我有点卡住了。我很想定义一个函数，然后立即调用。

我的代码如下：

def merge_dfs_on_column(dataframes, labels, col):
    '''merge a single column of each dataframe on to a new combined dataframe'''
    series_dict={}
    for index in range(len(dataframes)):
        series_dict[labels[index]]=dataframes[index][col]
    return pd.DataFrame(series_dict)
# Merge the BTC price dataseries into a single dataframe
btc_usd_datasets= merge_dfs_on_column(list(exchange_data.values()),list(exchange_data.keys()),'Weighted Price')

我可以清楚地看到我已经定义了merge_dfs_on_column fucntion，并且我认为语法是正确的，但是，当我在最后一行调用该函数时，出现以下错误：

NameError                                 Traceback (most recent call last)
<ipython-input-22-a113142205e3> in <module>()
      1 # Merge the BTC price dataseries into a single dataframe
----> 2 btc_usd_datasets= merge_dfs_on_column(list(exchange_data.values()),list(exchange_data.keys()),'Weighted Price')

NameError: name 'merge_dfs_on_column' is not defined

我在谷歌上搜索了答案并仔细检查了语法，但我不明白为什么在调用时无法识别该函数。

无法在 pwntools 中设置进程Python 2.7.17。

源代码：

from pwn import *
s=process('/root/Dokumente/Scripts/example_program')

我试过from pwn import *：

root@bitpc:~# python pwn.py 
Traceback (most recent call last):
  File "pwn.py", line 1, in <module>
    from pwn import *
  File "/root/pwn.py", line 2, in <module>
    s=process('/root/Dokumente/Scripts/example_program')
NameError: name 'process' is not defined

那是行不通的。然后我直接导入流程：

root@bitpc:~# python pwn.py 
Traceback (most recent call last):
  File "pwn.py", line 1, in <module>
    from pwn import process
  File "/root/pwn.py", line 1, in <module>
    from pwn import process
ImportError: cannot …

我正在尝试捕获无法加载模块时发生的任何异常.目前的结果是"except"块没有被执行.

import sys 
def loadModule(module):
   try: 
      import module
   except: 
      print """ 
      Cannot load %s
      For this script you will need: 
         cx_Oracle:  http://cx-oracle.sourceforge.net/
         pycrypto:   https://www.dlitz.net/software/pycrypto/
         paramiko:   http://www.lag.net/paramiko/
       """ % module
      sys.exit(1)

loadModule(cx_Oracle)

错误:

Traceback (most recent call last):
  File "./temp_script.py", line 16, in <module>
    loadModule(cx_Oracle)
NameError: name 'cx_Oracle' is not defined

import pickle
import os
import time

class Person():
    def __init__(self, number, address):
        self.number = number
        self.address = address


def save():
    with open('mydict.pickle', 'wb') as f:
        pickle.dump(mydict, f)        

mydict = {}
mydict['Avi'] = ['347-000-0000', 'Oceanview']
mydict['Alan'] = ['347-000-0000', 'Brighton']
mydict['Frank'] = ['718-000-0000', 'Brighton']

print('add a name to the database.')
name = input('Name:')
number = input('Digits:')
address = input('Address:')
mydict[name] = [number, address]

-------------------------------------------------------

错误:如果我尝试向数据库添加名称,我会得到一个名称错误.NameError:未定义名称'alan'.奇怪的是,字符串不起作用,但数字会起作用.对不起,如果我的问题不清楚.

Traceback (most recent call last):
  File "C:/Python33/ss", line 21, in <module>
    name = input('Name:')
  File "<string>", line …

我有一个蜘蛛文件dmoz_spider.py,它的对象是:

    from scrapy.spider import Spider
    from scrapy.selector import Selector
    from dmoz.items import DmozItem


    class DmozSpider(Spider):
       name = "dmoz"
       allowed_domains = ["m.timesofindia.com"]
       start_urls = ["http://m.timesofindia.com/india/Congress-BJP-spar-over-Gujarat-govts-Rs-11-per-day-poverty-line/articleshow/29830237.cms"]

       def parse(self, response):
            sel = Selector(response)
                torrent = DmozItem()
                filename = response.url.split("/")[-2]+"1.txt"
            torrent['link']  = response.url
            torrent['title']  = sel.xpath("//h1/text()").extract() 
                open(filename, 'wb').write(torrent['link'])

第二个文件是items.py

   from scrapy.item import Item, Field

     class DmozItem(Item):
        title = Field()
        link = Field()
        desc = Field()

当我运行我的爬虫时,我在命令行上遇到以下错误...

ImportError:没有名为dmoz.items的模块

至于什么时候我从我的蜘蛛文件中删除了import语句,它给了我错误的说法

exceptions.NameError:未定义全局名称'DmozItem'

以下代码在IDLE中运行正常,但我得到"NameError:全局名称'messagebox'未定义".但是,如果我明确说明from tkinter import messagebox,它可以从任何地方运行.

from tkinter import *
from tkinter import ttk 

root = Tk()
mainFrame = ttk.Frame(root)
messagebox.showinfo("My title", "My message", icon="warning", parent=mainFrame)

为什么IDLE不需要显式的import语句,但在其他地方需要它？

这是我的代码:

import os

if os.path.exists(r'C:\Genisis_AI'):
    print("Main File path exists! Continuing with startup")
else:
    createDirs()

def createDirs():
    os.makedirs(r'C:\Genisis_AI\memories')

当我执行它时,它会抛出一个错误:

File "foo.py", line 6, in <module>
    createDirs()
NameError: name 'createDirs' is not defined

我确定它不是拼写错误,我没有拼错函数的名称,为什么我得到一个NameError？

我想用eval做操作来查看是否a和b等于c某个运算符。

我的代码：

def Expression(a, b, c):
    operators = ["+", "-", "*", "/"]
    return len([i for i in operators if eval("a () b".replace("()", i)) == c]) >= 1

Expression(1, 2, 3)

出于某种原因，这会导致 NameError。错误日志：

return len([i for i in operators if eval("a () b".replace("()", i)) == c]) >= 1
  File "<string>", line 1, in <module>
NameError: name 'a' is not defined

由于该函数a作为参数，我认为a不应未定义。这里有什么问题？