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timmy / 使用 importlib 進行動態模組載入

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Last active 9 months ago
importlib 允許在執行時動態載入模組,適用於 外部插件管理、模組熱加載、延遲載入以提升效能 等場景。
dynamic-import importlib module-management plugin-loader python
1 import importlib
2
3 # 動態載入內建模組
4 math_module = importlib.import_module("math")
5 print(math_module.sqrt(16)) # 4.0
6
7 # 動態載入自訂模組
8 module_name = "my_module" # 假設有 my_module.py
9 custom_module = importlib.import_module(module_name)
10 print(custom_module.hello()) # 假設 my_module 有 hello() 函式

timmy / 檢查 Python 套件是否已安裝

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Last active 10 months ago
這段程式碼用於檢查 Python 環境中是否安裝了 numpy 模組。 如果 numpy 已安裝,則輸出 "numpy is installed",否則輸出 "numpy is not installed"。
dependency-check importlib module-detection package-management python
1 from importlib.util import find_spec
2
3 if find_spec("numpy") is not None:
4 print("numpy is installed")
5 else:
6 print("numpy is not installed")
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