TyPython path can't update in new python envs

[songjhaha]

If we have install jnumpy in python environment envA and exec jnumpy.init_jl() once, we will add TyPython path in our default project Manifest.toml. But if we create a new python environment and install new version jnumpy, the old one still work so the path in Manifest.toml would not update.

Maybe we should use different default Julia environments in every different python environments?

jnumpy/jnumpy/defaults.py

Lines 50 to 52 in e5c92bf

	def get_project_args():
	default_envs_dir = os.path.join(get_jnumpy_dir(), "envs/default")
	return f"--project={default_envs_dir}"

[thautwarm]

This problem can be split into the following two parts:

• the package TyPython referenced in the a Manifest.toml (of a Python package made by JNumPy) might change,but so far we cannot detect such changes.

• suppose we succeed in detecting the changes, how could we support separation of environments when something like venv is used.

[songjhaha]

It's seems that we didn't check the path of package TyPython changes here if the old path is still valid?

jnumpy/jnumpy/init.py

Lines 161 to 167 in 4ddd6e8

	exec_julia(
	f"""
	import Pkg
	Pkg.activate({escape_to_julia_rawstr(default_project_dir)}, io=devnull)
	include({escape_to_julia_rawstr(InitTools_path)})
	""",
	use_gil=False,

ps: #44 uses default environment in path/to/package/jnumpy/JNumPyEnv, so the path of TyPython is always the same one in package jnumpy