dynamic-import 0.9.4

Dynamically/Lazily import python module on run-time. Also enables easy to use import path name.

Lets you dynamically/lazily import python module on run-time, enables easy to use import path name, saves memory. Also makes managing projects easy by not having to worry about nested folder structure producing long import names.

Warning

“importer()” argument was changed in version “0.9.4”. No need to manually provide “__package__” name. Will raise DeprecationWarning in future releases.

Install, update & uninstall

Use pip to:

pip install dynamic-import

pip install --upgrade dynamic-import

pip uninstall dynamic-import

Example

./example/sample/__init__.py

from dynamic_import import importer

# Static/Normal Import
from .static import static

# Dynamic Importer
importer(
    {
        'one': ('a', 'b', 'c'),  # from .one import a, b, c
        'two': ('x', 'y', 'z'),  # from .two import x, y, z
        'local': 'internals',    # from .local import internals
        'sub': {
            'page': ('e', 'f', 'g'),  # from .sub.page import e, f, g
            'name': 'name',           # from .sub.name import name
        }
    }
)

./example/example.py

# Static Import #1
# ----------------
from sample import static
# Only "sample" & "sample.static" modules are loaded at this point.
print(static())
print()

# Dynamic Import #1
# -----------------
from sample import a, b, c
# Now "sample", "sample.direct" & "sample.one" modules are loaded at this point.
print(a())
print(b())
print(c())
print()

# Dynamic Import #2
# -----------------
from sample import x, y, z
# All "sample", "sample.direct", "sample.one" & "sample.two" modules are loaded.
print(x())
print(y())
print(z())
print()

# Dynamic Import #3
# -----------------
from sample import internals
# This is to demonstrate you can relatively import one module from another module.
print(internals())
print()

# Sub-page Import #1
# ------------------
from sample import e, f, g
# This demonstrates you can use nested sub-dir and use main module to import from.
print(e())
print(f())
print(g())
print()

# Sub-page Import #2
# ------------------
from sample import name
# Another sub-dir example
print(name())
print()

Note

• you can still use static/normal import e.g. “from .module import example” before “importer()” is called.

• You can also use “.” e.g. ‘.one’: (‘a’, ‘b’, ‘c’)

• for 1 word import name you can use ‘module’: ‘myclass’ vs ‘module’: (‘myclass’,)

• All import names must be unique.

License

Free, No limit what so ever. Read more