mac 安装 python3

1、安装

brew install python

2、配置 环境变量

·打开

 sudo vi ~/.bash_profile 

·添加

export PATH="/opt/homebrew/bin:$PATH"

·重载

 source ~/.bash_profile 
  ✗ source ~/.zshrc             # 按需

3、验证

·方式 1

ls -l /opt/homebrew/bin/python3    

·方式 2

echo $PATH

· 方式 3

/opt/homebrew/bin/python3 --version

4、shell 运行 python

• 方法 1

#!/bin/bash

# 定义函数
process_timestamp() {
  timestamp=$1
  formatted_date=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp($timestamp).strftime('%Y-%m-%d %H'))")
  id=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp($timestamp).strftime('%Y%m%d%H'))")

  echo "timestamp: $timestamp"
  echo "id: $id"
  echo "Formatted Date: $formatted_date"
}

# 获取当前时间，格式为 yyyy-MM-dd HH:mm:ss
current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo "当前时间：$current_time"

begin_timestamp=$(python3 -c "from datetime import datetime, timezone; print(int(datetime.now(timezone.utc).replace(minute=0, second=0, microsecond=0). timestamp()))")
begin_local_time=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp($begin_timestamp).strftime('%Y-%m-%d %H'))")


echo "begin_timestamp: $begin_timestamp"
echo "begin_local_time: $begin_local_time"

for ((i=0; i<=3; i++)); do
  timestamp=$((begin_timestamp - 3600*i))
  process_timestamp $timestamp
done

• 方法 2

#!/bin/bash

current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo "当前时间：$current_time"

begin_timestamp=$(python3 -c "from datetime import datetime, timezone; print(int(datetime.now(timezone.utc).replace(minute=0, second=0, microsecond=0). timestamp()))")
begin_local_time=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp($begin_timestamp).strftime('%Y-%m-%d %H'))")

echo "begin_timestamp: $begin_timestamp"
echo "begin_local_time: $begin_local_time"

for ((i=0; i<=3; i++)); do

  timestamp=$((begin_timestamp - 3600*i))
  formatted_date=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp(int('$timestamp')).strftime('%Y-%m-%d %H'))")
  id=$(python3 -c "from datetime import datetime; print(datetime.fromtimestamp(int('$timestamp')).strftime('%Y%m%d%H'))")

  echo "timestamp: $timestamp"
  echo "id: $id"
  echo "Formatted Date: $formatted_date"
done

结果

当前时间：2024-04-26 19:04:50
begin_hour: 11
begin_utc_time: 2024-04-26 11
begin_timestamp: 1714100400
timestamp: 1714100400
id: 2024042611
Formatted Date: 2024-04-26 11
timestamp: 1714096800
id: 2024042610
Formatted Date: 2024-04-26 10
timestamp: 1714093200
id: 2024042609
Formatted Date: 2024-04-26 09
timestamp: 1714089600
id: 2024042608
Formatted Date: 2024-04-26 08