ModuleNotFoundError: No module named 'MySQLdb'

Question

After finishing of one of my Flask projects, I uploaded it on github just like everybody else. after a 2-3 months period I downloaded the entire githube repository on anothe

Answer 1

I have the same problem like you. Here is my solution:

Reason: python3.X does not support MySQLdb,so you need to change to pymysql model

Solution: Change the content of import.

1):

replace all MySQLdb with pymysql

2):

def reconnect(self):
    """Closes the existing database connection and re-opens it."""
    self.close()
    self._db = pymysql.connect(**self._db_args)# MySQLdb.connect(**self._db_args)
    self._db.autocommit(True)

3)

if pymysql is not None:
    # Fix the access conversions to properly recognize unicode/binary
    FIELD_TYPE = pymysql.connections.FIELD_TYPE # MySQLdb.constants.FIELD_TYPE
    FLAG = pymysql.constants.FLAG# MySQLdb.constants.FLAG
    CONVERSIONS = copy.copy (pymysql.converters.conversions)# (MySQLdb.converters.conversions)

    field_types = [FIELD_TYPE.BLOB, FIELD_TYPE.STRING, FIELD_TYPE.VAR_STRING]
    if 'VARCHAR' in vars(FIELD_TYPE):
        field_types.append(FIELD_TYPE.VARCHAR)

    for field_type in field_types:
        # CONVERSIONS[field_type] = [(FLAG.BINARY, str)] + CONVERSIONS[field_type]
        CONVERSIONS[field_type] = [(FLAG.BINARY, str)].append(CONVERSIONS[field_type])

    # Alias some common MySQL exceptions
    IntegrityError = pymysql.IntegrityError# MySQLdb.IntegrityError
    OperationalError = pymysql.OperationalError# MySQLdb.OperationalError

4):

def __init__(self, host, database, user=None, password=None,
                 max_idle_time=7 * 3600, connect_timeout=10,# 设置连接超时时间，时间是秒
                 time_zone="+0:00", charset = "utf8", sql_mode="TRADITIONAL"):

5):

def query(self, query, *parameters, **kwparameters):
    """Returns a row list for the given query and parameters."""
    cursor = self._cursor()
    try:
        self._execute(cursor, query, parameters, kwparameters)
        column_names = [d[0] for d in cursor.description]
        return [Row(itertools.zip_longest(column_names, row)) for row in cursor]
    finally:
        cursor.close()