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以下是一个独立的示例。更改“folder_name”以运行它。 这个答案:'_csv.reader'类型的对象没有len(),csv数据未被识别
reader type = _csv.reader
list(reader) = []
_csv.reader' has no len()
我已经尝试了很多事情,但仍然无法访问数据,但它是在文件中。任何帮助将是非常受欢迎的。 伯尔尼
################ INPUTS ################
folder_name = '/Users/Shared/TS1/Historiques Dividendes/'
path_to_inter_file = folder_name + 'interm.csv'
################ End INPUTS ################
################ MAIN ################
## --- Creates "inter" file after removing previous one if existed
if os.access(path_to_inter_file, os.W_OK) == True:
os.remove(path_to_inter_file)
if os.access(path_to_inter_file, os.W_OK) == False:
finter = open(path_to_inter_file,'w')
## --- Gets data from an URL
URL = "<http://chart.finance.yahoo.com/table.csv?s=XLB&a=0&b=24&c=1980&d=0&e=24&f=2040&g=v&ignore=.csv'>"
data = requests.get(URL)
## --- Loads data into "inter" file
finter.write(data.text)
finter.close
## --- Reopens "inter" file to read data
finter = open(path_to_inter_file,'r')
mreader = csv.reader(finter,delimiter=',')
print type(mreader)
list(mreader)
print list(mreader)
len(mreader)
## --- Closes "inter" file and removes it
finter.close()
os.remove(path_to_inter_file)
################ End MAIN ################
'finter.close' =>'finter.close()' –