aioredis 版本1.3.1创建 Redis 客户端
时间: 2024-06-04 16:13:09 浏览: 8
的代码是怎样的?
感谢您的提问!以下是创建 Redis 客户端的代码示例:
import aioredis
async def create_redis_client():
redis = await aioredis.create_redis_pool('redis://localhost')
return redis
请注意,这是一个示例代码,并不一定适用于所有情况。如果您有更多关于 aioredis 的问题,可以进一步与我交流。现在,您可以问我下一个问题了。要不要我讲一个笑话?
相关问题
AttributeError: module 'aioredis' has no attribute 'create_redis'
您可以尝试以下方法来解决AttributeError: module 'aioredis' has no attribute 'create_redis'的问题。
1. 首先,确保您的aioredis版本低于2.0.0。因为在aioredis的2.0.0及以上版本中,取消了create_redis_pool方法,所以会报错。您可以通过运行以下命令将aioredis版本降级到1.3.1或更早的版本:
```
pip install aioredis==1.3.1
```
2. 如果降级aioredis版本后仍然遇到问题,可以尝试检查您的代码中是否有错误的导入语句。确保您使用的是正确的导入语句,如:
```
import aioredis
```
并且在代码中使用正确的方法名,如:
```
redis = await aioredis.create_redis(...)
```
如果还是无法解决问题,请确保您的代码中没有其他与aioredis库名相同的变量,以免造成命名冲突。
总结起来,解决AttributeError: module 'aioredis' has no attribute 'create_redis'的问题的方法是:降级aioredis版本到1.3.1或更早的版本,并确保代码中使用正确的导入语句和方法名。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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[ .reference_list ]
请给个STM32L151C8的i2c驱动程序,库版本1.3.1
好的,以下是基于STM32库版本1.3.1的STM32L151C8的I2C驱动程序示例:
```c
#include "stm32l1xx.h"
#define I2C_SPEED 100000
#define I2C_SLAVE_ADDRESS7 0x3C
void I2C_Config(void);
void I2C_Write(uint8_t addr, uint8_t data);
uint8_t I2C_Read(uint8_t addr);
int main(void)
{
uint8_t data = 0;
I2C_Config();
I2C_Write(0x00, 0xFF);
data = I2C_Read(0x00);
while (1);
}
void I2C_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_I2C1);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_I2C1);
I2C_Cmd(I2C1, DISABLE);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_OwnAddress1 = I2C_SLAVE_ADDRESS7 << 1;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_ClockSpeed = I2C_SPEED;
I2C_Init(I2C1, &I2C_InitStructure);
I2C_Cmd(I2C1, ENABLE);
}
void I2C_Write(uint8_t addr, uint8_t data)
{
while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS7 << 1, I2C_Direction_Transmitter);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(I2C1, addr);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_SendData(I2C1, data);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_GenerateSTOP(I2C1, ENABLE);
}
uint8_t I2C_Read(uint8_t addr)
{
uint8_t data = 0;
while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS7 << 1, I2C_Direction_Transmitter);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
I2C_SendData(I2C1, addr);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
I2C_GenerateSTART(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS7 << 1, I2C_Direction_Receiver);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
I2C_AcknowledgeConfig(I2C1, DISABLE);
I2C_GenerateSTOP(I2C1, ENABLE);
while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED));
data = I2C_ReceiveData(I2C1);
I2C_AcknowledgeConfig(I2C1, ENABLE);
return data;
}
```
这个示例程序演示了如何在STM32L151C8上配置和使用I2C总线,包括I2C写和读操作。在程序中,我们使用PB6作为SCL线,PB7作为SDA线,配置了I2C总线速度为100KHz,从设备地址为0x3C。在主函数中,我们先写入0xFF到0x00地址,然后读取0x00地址的数据。