python函数中的变量问题，未定义

Question

我目前正在Azure Databricks上使用Python。最近，您正在使用的群集进行了更新，现在我的解决方案无法正确运行。我今天的错误恰恰是：

NameError: ("name 'ajuste_fecha' is not defined", 'occurred at index 0')

代码如下：

from pyspark.sql.types import *
from pyspark.sql.functions import *
import pandas as pd
import datetime
# from datetime import datetime  
from pyspark.sql import SQLContext
import json
import re
import requests
from pandas.io.json import json_normalize
import json
import os
from os import listdir
from os.path import isfile, join
import io

def f_ajuste_fecha(fecha):
  global ajuste_fecha
  if fecha[0:3] == "Ene" :
    ajuste_fecha = "01"
  elif fecha[0:3] == "Feb" :
    ajuste_fecha = "02"
  elif fecha[0:3] == "Mar" :
    ajuste_fecha = "03"
  elif fecha[0:3] == "Abr" :
    ajuste_fecha = "04"
  elif fecha[0:3] == "May" :
    ajuste_fecha = "05"
  elif fecha[0:3] == "Jun" :
    ajuste_fecha = "06"
  elif fecha[0:3] == "Jul" :
    ajuste_fecha = "07"
  elif fecha[0:3] == "Ago" :
    ajuste_fecha = "08"
  elif fecha[0:3] == "Sep" :
    ajuste_fecha = "09"
  elif fecha[0:3] == "Oct" :
    ajuste_fecha = "10"
  elif fecha[0:3] == "Nov" :
    ajuste_fecha = "11"
  elif fecha[0:3] == "Dic" :
    ajuste_fecha = "12"
  return ajuste_fecha

res = requests.get("https://estadisticas.bcrp.gob.pe/estadisticas/series/api/PD04637PD/csv/")
df = pd.read_csv(io.StringIO(res.text.strip().replace("<br>","\n")), engine='python')

df.rename(columns={'Tipo de cambio - TC Interbancario (S/ por US$) - Compra':'valor'} , inplace=True)
df.rename(columns={'D&iacute;a/Mes/A&ntilde;o':'fecha'} , inplace=True)

df['periodo_temp'] = df.apply(lambda x : x['fecha'][3:9],axis=1)
df['periodo_temp_2'] = df.apply(lambda x : '20' +  x['fecha'][7:9] + '-' + f_ajuste_fecha(x['periodo_temp'][0:3])  + '-' + x['fecha'][0:2] ,axis=1)


df['periodo'] = pd.to_datetime(df['periodo_temp_2'], format='%Y-%m-%d')

df_temp = df[df['periodo'] == df['periodo'].max()]
df_2 = df_temp[['periodo', 'valor']]
df_dolar = df_2
df_dolar

正如我提到的，之前我没有这个问题。我尝试了函数外部的实例ajuste_fecha = ''，但也没有成功

我做错了什么？原因是什么

提前非常感谢，我会留意你的回答

你好

Answer 1

因此，请尝试这样做-将ajuste_fecha作为全局删除，并为其分配一个随机字符串“abc”，如ajuste_fecha ='abc'并运行它。你不会注意到那个错误