python 提示 ：OverflowError: Python int too large to convert to C long

Posted 2021-03-22 XuMou

一次在使用orm进行联表查询的时候，出现   Python int too large to convert to C long 的问题：

在分析错误之后，在错误最后面提示中有：

  File "F:\\python\\python3.6\\lib\\sqlite3\\dbapi2.py", line 64, in convert_date
    return datetime.date(*map(int, val.split(b"-")))

在查看我的model.py文件的时候我的模型定义是：

from django.db import models


# Create your models here.

class Book(models.Model):
    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=64)
    publishDate = models.DateField()
    price = models.DecimalField(max_digits=5, decimal_places=2)

    publish = models.ForeignKey(to="Publish", to_field="nid", on_delete=models.CASCADE)

    authors = models.ManyToManyField(to="Author")


class Author(models.Model):
    nid = models.AutoField(primary_key=True)
    name = models.CharField(max_length=32)
    age = models.IntegerField()
    # 作者和作者信息一对一
    AuthorDetail=models.OneToOneField(to="AuthorDetail",on_delete=models.CASCADE)


class AuthorDetail(models.Model):
    nid = models.AutoField(primary_key=True)
    # birthday = models.DateField()  # 特别是这一行进行注视后，就不会再提示 Python int too large to convert to C long  了
　　# 或则将此行改为

　　birthday = models.DateTimeField()

   tetephone = models.BigIntegerField()
    addr = models.CharField(max_length=64)


class Publish(models.Model):
    nid = models.AutoField(primary_key=True)
    name = models.CharField(max_length=32)
    city = models.CharField(max_length=32)
    email = models.EmailField()