如何根据所选数字显示文本字段？

Question

我有一个 python 代码，允许用户 select 他想在文本字段中显示的数字。该程序将遍历 selected 数字的范围并创建一个文本字段。

但是，一旦我运行脚本崩溃并产生此错误：

error: TypeError: cannot unpack non-iterable int object Traceback: File "F:\AIenv\lib\site-packages\streamlit\script_runner.py", line 354, in _run_script exec(code, module.dict) File "f:\AIenv\streamlit\app2.py", line 1309, in main() File "f:\AIenv\streamlit\app2.py", line 682, in main for i , old_val in range(int(number_of_replacement)):

number_of_replacement = st.number_input("Number of values To Replace",0,100)
with st.form(key='my_form'):
    col1,col2 = st.columns(2)
    st_input = st.number_input if is_numeric_dtype(df[columns]) else st.text_input

    with col1:
        for i , old_val in range(int(number_of_replacement)):
            old_val = st_input("Old value",key=i)

Answer 1

您的 for 循环似乎有误。

要么删除 i:

with col1:
    for old_val in range(int(number_of_replacement)):
        old_val = st_input("Old value",key=i)

或者如果您稍后在代码中需要索引 i enumerate 在可迭代对象上：

with col1:
    for i, old_val in enumerate(range(int(number_of_replacement))):
        old_val = st_input("Old value",key=i)

如何根据所选数字显示文本字段？

How to display text field based on the selected number?

python

for-loop

streamlit