name 'rows' is not defined

It seems like you're encountering an error in your code. The error message "name 'rows' is not defined" typically occurs when you try to use a variable that has not been defined or declared before.

To fix this issue, you need to make sure that the variable "rows" is defined before you use it. This can be done by assigning a value to the "rows" variable using an appropriate data type, such as a list or an array.

For example:

rows = [1, 2, 3, 4, 5]  # Define the variable "rows" as a list

Make sure to check your code and ensure that the variable "rows" is defined and accessible in the scope where you are using it.

相关问题

name 'img_rows' is not defined

This error occurs when the variable 'img_rows' is not defined in the current context or scope. It could be that the variable was not initialized or declared before use, or it could be that it was declared in a different function or file and is not accessible in the current context.

To fix this error, make sure to initialize and declare the 'img_rows' variable before using it in your code. If it was declared in a different function or file, make sure to import or pass it into the current context so that it can be accessed.

NameError: name 'dataframe_to_rows' is not defined

非常抱歉，之前的代码有误。在使用 openpyxl 库中的 `dataframe_to_rows()` 函数前需要先导入这个函数。请把之前的代码替换成下面的代码：

import pandas as pd
from openpyxl import Workbook
from openpyxl.utils.dataframe import dataframe_to_rows

# 创建一个示例数据
data = {'姓名': ['张三', '李四', '王五'],
        '年龄': [20, 25, 30],
        '性别': ['男', '男', '女']}

# 将数据转换为 pandas 的 DataFrame 对象
df = pd.DataFrame(data)

# 创建一个 Excel 文件
wb = Workbook()
ws = wb.active

# 将 DataFrame 中的数据写入 Excel 文件中
for r in dataframe_to_rows(df, index=False, header=True):
    ws.append(r)

# 保存 Excel 文件
wb.save('example.xlsx')

这段代码将会把一个包含姓名、年龄和性别的表格数据写入一个名为 `example.xlsx` 的 Excel 文件中。