Question

from tkinter import filedialog as fd

filename = fd.askopenfilename(title = "Select file",filetypes = (("CSV Files","*.csv"),("All","*.*")))

打开文件夹以选择文件，但是当我尝试时：

from tkinter import filedialog as fd

filename = fd.askopenfilename(title = "Select file",filetypes = ("CSV Files","*.csv"))

错误：

回溯（最近通话最近）：文件 “ D：\ python_projects \ csv_codes \ csv_reading.py”，第4行，在 filename = fd.askopenfilename（title =“选择文件”，文件类型=（“ CSV文件”，“ *。csv”））文件“ C：\ Python \ lib \ tkinter \ filedialog.py”，第375行，在askopenfilename中在显示中返回Open（** options）.show（）文件“ C：\ Python \ lib \ tkinter \ commondialog.py”，第43行 s = w.tk.call（self.command， w._options（self.options）） _tkinter.TclError：文件类型“ .csv”错误，应为“ typeName {扩展名？扩展名...？}？{macType？macTypes ...？}？”

我到底想要什么？

我只希望选择.CSV个文件。（必修）

Answer 1

filetypes必须是一个元组。例如：

from tkinter import filedialog as fd

filename = fd.askopenfilename(title = "Select file",filetypes = (("CSV Files","*.csv"),))

但是我建议您在一个窗口中将其全部整理。例如，与您输入相同但更整洁：

from tkinter import *
from tkinter import filedialog as fd

def get_file_name(file_entry):
    file_name = fd.askopenfilename(title = "Select file",filetypes = (("CSV Files","*.csv"),))
    file_entry.delete(0,END)
    file_entry.insert(0,file_name)

def run_and_close(event=None):
    ######################################
    ## EXECUTE OR CALL OTHER PYTHON FILE##
    ######################################
    close()

def close(event=None):
    master.withdraw() # if you want to bring it back
    sys.exit() # if you want to exit the entire thing

master = Tk()
master.title("This is my Interface")

entry_csv=Entry(master, text="", width=50)
entry_csv.grid(row=0, column=1, sticky=W, padx=5)

Label(master, text="Input CSV").grid(row=0, column=0 ,sticky=W)
Button(master, text="Browse...", width=10, command=lambda:get_file_name(entry_csv)).grid(row=0, column=2, sticky=W)

Button(master, text="Ok",     command=run_and_close, width=10).grid(row=3, column=1, sticky=E, padx=5)
Button(master, text="Cancel", command=close, width=10).grid(row=3, column=2, sticky=W)

master.bind('<Return>', run_and_close)
master.bind('<Escape>', close)
mainloop()

仅接受一种文件类型

1 个答案: