suryadi / Programmatic Installation & Dynamic Import

08 Feb 2026 at 20:36

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1	import subprocess
2	import sys
3	import importlib
4
5	def install_and_import(package_name, import_name=None):
6	"""
7	Installs a package using pip and imports it without restarting the script.
8	:param package_name: The name of the package to install (e.g., 'scikit-learn')
9	:param import_name: The actual name used in code (e.g., 'sklearn').
10	Defaults to package_name if not provided.
11	"""
12	if import_name is None:
13	import_name = package_name
14
15	try:
16	# Check if the module is already installed
17	importlib.import_module(import_name)
18	print(f"'{import_name}' is already installed. Skipping installation.")
19	except ImportError:
20	# If not found, install it
21	print(f"'{package_name}' not found. Installing...")
22	subprocess.check_call([sys.executable, "-m", "pip", "install", package_name])
23
24	# Load the newly installed module into the global namespace
25	globals()[import_name] = importlib.import_module(import_name)
26	print(f"Successfully installed and imported '{import_name}'.")
27
28	# Example Usage:
29	install_and_import('requests')
30
31	# Now you can use it immediately
32	res = requests.get("https://google.com")
33	print(f"Connection status: {res.status_code}")

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