Python Pandas無法讀取DataFrame

Question

我正在嘗試將csv文件讀入pandas數據框，然后將該列設置為columns = [...]中的指定列

現在有人會為什么不讀取我的所有數據嗎？ p

fp = '/Users/USERNAME/Development/file.csv'
file1 = open(fp, 'rb').read()
reader = pd.DataFrame.from_csv(fp, index_col=False, sep=',')

df = pd.DataFrame(reader, columns=['VIN', 'Reg City','First Name','Last Name','MGVW','Nat Flt Ind','MGVW',
                                    'Reg Name','Phone', 'Unnamed: 8','ZIP','VC','VType', 
                                    'Reg Voc', 'Make','Veh Model', 'E Mfr','Engine Model', 
                                    'CY2010', 'CY2011', 'CY2012', 'CY2013', 'CY2014', 'CY2015', 
                                    'Std Cnt',])

#reader.head(1)
df.head(1)

VIN Reg City名字MGVW Nat Flt Ind MGVW Reg Name電話未命名：8 ... Veh Model E Mfr Engine Model CY2010 CY2011 CY2012 CY2013 CY2014 CY2015 Std Cnt 0 NaN KANSAS NaN NaN NaN NNN ACE PIPE CLNG INC NaN NaN。 .. NaN NaN NaN 0 1

Answer 1

只需執行df = pd.read_csv('/Users/USERNAME/Development/file.csv')即可加載CSV文件。 如果我沒記錯的話， from_csv被read_csv代替。

Answer 2

這是僅加載某些社區的版本。 在pd.read_csv()設置usecols 。

import pandas as pd

fp = '/Users/USERNAME/Development/file.csv'

usecols = ['VIN', 'Reg City','First Name','Last Name','MGVW','Nat Flt Ind','MGVW',
                                'Reg Name','Phone', 'Unnamed: 8','ZIP','VC','VType', 
                                'Reg Voc', 'Make','Veh Model', 'E Mfr','Engine Model', 
                                'CY2010', 'CY2011', 'CY2012', 'CY2013', 'CY2014', 'CY2015', 
                                'Std Cnt']

df = pd.read_csv(fp, usecols=usecols, sep=',')

print df.head()