傳入函數參數列表的全局變量

我在使用parseTwoPoleBreakers函數時遇到了問題。我試圖在該函數中輸入一個列表inputList，所以我知道將brk1_int_c,brk1_ext_c,brk2_int_c,brk2_ext_c放在哪個列表中。當我在NameError: global name 'brk1_int_c' is not defined下運行腳本時，出現以下錯誤。我很確定我使用行global brk1_int_c,brk1_ext_c,brk2_int_c,brk2_ext_c來定義我的變量，但我可能是錯的，所以關於如何獲得定義這些變量和列入inputList的任何輸入將不勝感激。傳入函數參數列表的全局變量

#purpose2: To read in the 21 2 pole breaker panel data sheets, and parse them into the correct format, so they can be imported into the database. 


import numpy as np 
import pandas as pd 



# 1. input data and store in data frame 
with pd.ExcelFile("C:/Users/Documents/original.xlsx", 
        sheetname=['pnl1 Data ','pnl2 Data','pnl3 Data','pnl4 Data']) as xlsx: 
    df1 = pd.read_excel(xlsx, 'pnl1 Data ', skiprows=9, parse_cols="B:H", keep_default_na='FALSE', na_values=['NULL']) 
    df2 = pd.read_excel(xlsx, 'pnl2 Data', skiprows=9, parse_cols="B:H", keep_default_na='FALSE', na_values=['NULL']) 
    df3 = pd.read_excel(xlsx, 'pnl3 Data', skiprows=9, parse_cols="B:H", keep_default_na='FALSE', na_values=['NULL']) 
    df4 = pd.read_excel(xlsx, 'pnl4 Data', skiprows=9, parse_cols="B:H", keep_default_na='FALSE', na_values=['NULL']) 

# 2. convert data into a single row, in the correct order, and into csv format 
df1numOfRows = len(df1.index) 

# 2a. you need to look at the breaker table to see what the highest breaker id is and then use the number one higher than that 
#fi_breakerTable = open(document,"r") 

# 2b. store variables in a list that will be written to csv 
breakerid=0 
deviceid=0 
NULL="NULL" 

# 2bc. FDC Feed Braeker "List" 
g_int_c=str(df1['Unnamed: 1'][6]) 
g_ext_c=str(df1['Unnamed: 2'][6]) 
breakertype="NULL"#should I keep this null or does it equal "FDC Feed Breaker"? 
n_int_c=str(df1['Unnamed: 1'][5]) 
n_ext_c=str(df1['Unnamed: 2'][5]) 
a_int_c=str(df1['Unnamed: 1'][2]) 
a_ext_c=str(df1['Unnamed: 2'][2]) 
b_int_c=str(df1['Unnamed: 1'][3]) 
b_ext_c=str(df1['Unnamed: 2'][3]) 
c_int_c=str(df1['Unnamed: 1'][4]) 
c_ext_c=str(df1['Unnamed: 2'][4]) 
a_b=str(df1['Unnamed: 2'][0]) 
b_c=str(df1['Unnamed: 6'][0]) 
c_a=str(df1['Pnl 1 Data'][0]) 
fdcFeedBreakerList = [g_int_c,g_ext_c,NULL,NULL,n_int_c,n_ext_c,NULL,NULL,a_int_c,a_ext_c,NULL,NULL,b_int_c,b_ext_c,NULL,NULL,c_int_c,c_ext_c,NULL,NULL,a_b,c_a,b_c,NULL,breakertype,deviceid,breakerid] #3 pole breake riwht monitoring, an nuetral and a group (current & voltage) 
breakerid+=1 
fdcFeedBreakerString=",".join(map(str,fdcFeedBreakerList)) 
fdcFeedBreakerString=fdcFeedBreakerString+"\n" 
print fdcFeedBreakerString 


# 2bc. FDC Feed Braeker "List" 
def parseTwoPoleBreakers(breakerStartVal1,breakerStartVal2,inputList,i): 
    global brk1_int_c,brk1_ext_c,brk2_int_c,brk2_ext_c 
    additionValue=(i*6) 
    #2 Pole breaker with monitring (current only) (a-b) 
    aStartVal=breakerStartVal1 
    bStartVal=breakerStartVal2 
    if i>=1: 
     aRowNum=aStartVal 
     bRowNum=bStartVal 
    else: 
     aRowNum=aStartVal+additionValue 
     bRowNum=bStartVal+additionValue 
    brk1_int_c=str(df1['Unnamed: 1'][aRowNum])#starts at row 7,13,19,25,31,37,43,49. addition of 6 
    print aRowNum 
    brk1_ext_c=str(df1['Unnamed: 2'][aRowNum]) 
    brk2_int_c=str(df1['Unnamed: 1'][bRowNum]) 
    brk2_ext_c=str(df1['Unnamed: 2'][bRowNum]) 
    #two_pbwmco_a_b=[NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,a_int_c,a_ext_c,NULL,NULL,b_int_c,b_ext_c,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,breakertype,deviceid,breakerid] 
    two_pbwmco_a_b=inputList 
    breakerid+=1 
    two_pbwmco_a_bString=",".join(map(str,two_pbwmco_a_b)) 
    two_pbwmco_a_bString=two_pbwmco_a_bString+"\n" 
    print two_pbwmco_a_bString 

    print breakerid 

two_pbwmco_a_bList2=[NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,brk1_int_c,brk1_ext_c,NULL,NULL,brk2_int_c,brk2_ext_c,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,breakertype,deviceid,breakerid]   
two_pbwmco_b_cList2=[NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,brk1_int_c,brk1_ext_c,NULL,NULL,brk2_int_c,brk2_ext_c,NULL,NULL,NULL,NULL,NULL,NULL,breakertype,deviceid,breakerid] 
two_pbwmco_c_aList2=[NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,brk2_int_c,brk2_ext_c,NULL,NULL,NULL,NULL,NULL,NULL,brk1_int_c,brk1_ext_c,NULL,NULL,NULL,NULL,NULL,NULL,breakertype,deviceid,breakerid] 
i=0 
while (i<7): 
    parseTwoPoleBreakers(7,8,two_pbwmco_a_bList2,i) 
    parseTwoPoleBreakers(9,10,two_pbwmco_b_cList2,i) 
    parseTwoPoleBreakers(11,12,two_pbwmco_c_aList2,i) 
    i+=1

來源

2016-04-23 pHorseSpec

如果它應該是「全局」，那麼您可能必須先直接在文件中定義它，而不是在函數中。

嘗試把類似的東西在你的代碼文件的開頭：

brk1_int_c = '' 
brk1_ext_c = '' 
brk2_int_c = '' 
brk2_ext_c = ''

來源

2016-04-23 20:45:56

傳入函數參數列表的全局變量

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