在將sqlite3數據庫讀入pandas DataFrame時如何修復SyntaxError

Question

我正在嘗試使用pandas讀取sqlite3數據庫。 不幸的是在我的代碼中是SyntaxError但我找不到它。

代碼與許多教程中的代碼相同，所以我不知道問題出在哪里

import pandas as pd
import sqlite3

con = sqlite3.connect("activity_log.db")
query = "SELECT * from log"
df = pd.read_sql_query(query, con)

print(df)

con.close()

結果：

" Traceback (most recent call last):
  File "C:/Users/g50-45/Desktop/ML/1z10_webapp/data_analyser.py", line 7, in <module>
    df = pd.read_sql_query(query, con)

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pandas\io\sql.py", line 325, in read_sql_query
    pandas_sql = pandasSQL_builder(con)

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pandas\io\sql.py", line 575, in pandasSQL_builder
    if _is_sqlalchemy_connectable(con):

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\pandas\io\sql.py", line 44, in _is_sqlalchemy_connectable
    import sqlalchemy

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\sqlalchemy\__init__.py", line 12, in <module>
    from sqlalchemy.sql import (

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\sqlalchemy\sql\__init__.py", line 7, in <module>
    from sqlalchemy.sql.expression import (

  File "C:\Users\g50-45\AppData\Local\Programs\Python\Python37-32\lib\site-packages\sqlalchemy\sql\expression.py", line 2452

    ^
SyntaxError: invalid syntax "

Answer 1

在重要的重構之前sqlalchemy\\sql\\expression.py.py", line 2452 sqlalchemy包看起來像6歲（ sqlalchemy\\sql\\expression.py.py", line 2452 ）。

您應該刪除此軟件包並使用較新版本重新安裝或嘗試使用以下更新：

pip install SQLAlchemy --upgrade