属性错误：“工作表”对象没有属性“set_column”

Question

我收到一个似乎...错误的错误。当然，因为工作表对象具有 set_column() 作为函数，所以它在文档中。我可能做了一些愚蠢的事情，比如去掉括号。

这是错误：

Traceback (most recent call last):
  File "scrubaddresses.py", line 137, in <module>
    run()
  File "scrubaddresses.py", line 118, in run
    format_col_width(worksheet)
  File "scrubaddresses.py", line 24, in auto_format_cell_width
    ws.set_column('B:C', 20)
AttributeError: 'Worksheet' object has no attribute 'set_column'

这是我荒谬的进口。 Config 是一些常量，控制器有一些辅助函数。

from smartystreets_python_sdk import StaticCredentials, exceptions, Batch, ClientBuilder
from smartystreets_python_sdk.us_street import Lookup as StreetLookup
from pathlib import Path
import pandas as pd
import numpy as np
import config
from controller import getExcel, clean

有问题的功能：

def format_col_width(ws):
    ws.set_column('B:C', 20)
    ws.set_column('D', 1)
    ws.set_column('E', 20)

传递的ws来自哪里：

            df1 = df.replace(np.nan, '', regex=True)
            print(df1)

            df1.to_excel(writer, sheet, index = False, engine='xlsxwriter')
            worksheet = writer.sheets[sheet]
            format_col_width(worksheet)

我是否忘记导入某些东西？ Xlsxwriter 已安装。

Answer 1

给出的原因：

AttributeError: 'Worksheet' object has no attribute 'write'

这是因为你的电脑上没有安装xlsxwriter。

您可以使用：

pip install xlsxwriter

它会起作用。

Answer 2

单列范围存在错误。它们应该是

D:D

而不是

D

，因为即使它们相同，该方法也需要开始和结束列。

经过修改，代码应该可以工作：

import pandas as pd

def format_col_width(ws):
    ws.set_column('B:C', 20)
    ws.set_column('D:D', 1)
    ws.set_column('E:E', 20)

df = pd.DataFrame({'Data1': [10, 20, 30, 20, 15, 30, 45]})

writer = pd.ExcelWriter('pandas_test.xlsx', engine='xlsxwriter')
df.to_excel(writer, sheet_name='Sheet1')

workbook  = writer.book
worksheet = writer.sheets['Sheet1']

format_col_width(worksheet)

writer.save()

输出：

尝试上面的代码，看看是否有效。如果没有，则 XlsxWriter 可能未安装，并且 Pandas 默认为 OpenPyXL。

Answer 3

我遇到了同样的问题，以下方法对我有用：

def format_col_width(ws):
    ws.column_dimensions['B'].width = 20
    ws.column_dimensions['C'].width = 20
    ws.column_dimensions['D'].width = 1
    ws.column_dimensions['E'].width = 20

Answer 4

    # monkey path :) -- https://stackoverflow.com/questions/74844262/how-can-i-solve-error-module-numpy-has-no-attribute-float-in-python
    # as of 2023/04/21
    # AttributeError: module 'numpy' has no attribute 'float'
    np.float = float  
    writer = pd.ExcelWriter('test.xlsx') 
    df.to_excel(writer, sheet_name='Sheet1', index=False, na_rep='NaN')
    for column in df:
        column_length = max(df[column].astype(str).map(len).max(), len(column))
        col_idx = df.columns.get_loc(column)
        #writer.sheets['Sheet1'].set_column(col_idx, col_idx, column_length)  <-- set_column deprecated
        writer.sheets['Sheet1'].column_dimensions[chr(65+col_idx)].width = column_length + 5   # add some extra space {5 here} to have a better look