在python中的列表计数中使用entry.get

Question

我尝试使用GUI中的ID条目来计算Excel列中类似的ID。

我总是在if循环中得到一个0，并且显示红色。但该列中也有类似的ID。

我的代码

l1 = tk.Label(tab2, text="Status Check")
l1.place(x=10, y=10)
l2 = tk.Label(tab2, text="ID")
l2.place(x=10, y=60)
ID = tk.Entry(tab2)
ID.place(x=80, y=60)
l2 = tk.Label(tab2, text="Status")
l2.place(x=10, y=100)
t1 = tk.Entry(tab2)
t1.place(x=80, y=100)
comment = tk.Label(tab2)
comment.place(x=240, y=100)
df = pd.read_excel(r'Excel.xlsx')
IDlist = df['ID'].tolist()
id = ID.get()
def immunity_check():
d = IDlist.count(id)
print(d)
if d >= 2:
t1.config(bg= "Green")
comment.configure(text="Fully vaccinated!")
elif d == 1:
t1.config(bg= "Yellow")
comment.configure(text="Vaccinated!")
else d <= 0:
t1.config(bg= "Red")
comment.configure(text="Not vaccinated!")

有人能就如何修理它提出建议吗？

Answer 1

我完全同意furas的评论。谢谢他，他解决了。

问题

目前，在按下按钮之前，代码正在读取文本字段中的输入。在ID.get()语句后面放置一个print(id)并监视控制台，如：

# GUI initialization omitted for brevity
df = pd.read_excel(r'Excel.xlsx') # read from Excel before button-pressed
IDlist = df['ID'].tolist()
id = ID.get() # get input from text-field before button-pressed
print(id)
# wait for a button press
# below is called on button-press and uses previously read id as argument
def immunity_check():

解决方案

这就是解决问题的方法。按下按钮后，应该从文本输入中读取id。所以将move语句放入方法中：

# part 1:  GUI initialization omitted for brevity
# part 2:  define functions to call later
def read_ids():
df = pd.read_excel(r'Excel.xlsx')
return df['ID'].tolist()
def immunity_check():
id = ID.get()  # read the id to search/count
d = id_list.count(id)
print(f"occurrences of id '{id}' in list: {d}")
if d >= 2:
t1.config(bg= "Green")
comment.configure(text="Fully vaccinated!")
elif d == 1:
t1.config(bg= "Yellow")
comment.configure(text="Vaccinated!")
else d <= 0:
t1.config(bg= "Red")
comment.configure(text="Not vaccinated!")
# part 3: main starts
id_list = read_ids()
# add button with trigger to function immunity_check()
button = tk.Button(tab2,text="Check",command=immunity_check) button.place(x=10,y=180)