如果字符串包含在文件名中，则将值添加到列中（python 3）

Question

I'm trying to add a month column with values to an existing Excel-File (xlsx). With the if statement, it's supposed to add a specific month based on the string in the file name. Despite not receiving an error, my function seems to have problem looking up the filename (it works however if I do something like 'if "jan" in "monthjanmonth").

sale14_file = pd.read_excel("sales-jan-2014.xlsx")
File_Name = glob.glob("sales-jan-2014.xlsx")

# adding date as first column
def AddingDate():
    if "jan" in File_Name:
        CustomMonth = "January"
        sale14_file.insert(0, "Date", CustomMonth)

AddingDate()

IDE: pycharm

Python version: 3.0

Windows 7

Answer 1

Just figured out the answer myself. Had to add "str" to the filename variable.

File_Name = str(glob.glob("sales-jan-2014.xlsx"))

instead

File_Name = glob.glob("sales-jan-2014.xlsx")

Answer 2

file_handler = open('sales-jan-2014.xlsx','w')
file_handler.close()

File_Name = glob.glob("sales-jan-2014.xlsx")
type(File_Name)
print('{0}'.format(File_Name))


x = "jan" in File_Name
print('{0}'.format(x))

x = "jan" in str(File_Name)
print('{0}'.format(x))

x = "jan" in File_Name[0]
print('{0}'.format(x))

result

['sales-jan-2014.xlsx']
False
True
True

This is a list :) you need to use str() or change your code