Fix for issue 25: Imports not working

.gitignore

@@ -1,3 +1,4 @@
+venv/
 
 .idea/
 

README.md

@@ -33,11 +33,9 @@ Units are converted to one another by asking one unit to convert to the other.
 The `Unit.to_unit` function takes a number and a target `Unit`.
 
 ```python
-import oxrse_unit_conv
+from oxrse_unit_conv import km, mile
 
 n = 42
-km = oxrse_unit_conv.km
-mile = oxrse_unit_conv.mile
 print(f"{n}{km.abbr} in {mile} = {km.to_unit(n, mile)}")
 ```
 

src/oxrse_unit_conv/__init__.py

@@ -1,2 +1,2 @@
-from .units import *
-from .main import convert, click_convert
+from oxrse_unit_conv.units import *
+from oxrse_unit_conv.main import convert, click_convert

src/oxrse_unit_conv/main.py

@@ -1,6 +1,6 @@
 # Click interface to allow running from command line
-import units
-import meta.classes
+from oxrse_unit_conv import units
+from oxrse_unit_conv.meta import classes
 import click
 import logging
 
@@ -25,15 +25,15 @@ def click_convert(number, unit, to):
     click.echo(convert(number, unit, to))
 
 
-def convert(number: meta.classes.Number, unit: str, to: str):
+def convert(number: classes.Number, unit: str, to: str):
     logging.debug(f"Call: {number}: {unit} -> {to}")
 
     my_unit: units.Unit = getattr(units, unit)
-    if not isinstance(my_unit, meta.classes.BaseUnit):
+    if not isinstance(my_unit, classes.BaseUnit):
         raise TypeError(f"{unit} does not correspond to a known unit.")
     if to:
         target_unit = getattr(units, to)
-        if not isinstance(target_unit, meta.classes.BaseUnit):
+        if not isinstance(target_unit, classes.BaseUnit):
             raise TypeError(f"{to} does not correspond to a known unit.")
     else:
         target_unit = my_unit.si_unit

src/oxrse_unit_conv/si.py

@@ -5,7 +5,7 @@
 # the first unit is converted to the SI unit,
 # and then the SI unit is converted to the second unit.
 
-from meta import classes
+from oxrse_unit_conv.meta import classes
 
 second = classes.SIUnit("second", "s")
 s = second

src/oxrse_unit_conv/units.py

@@ -1,5 +1,5 @@
-from si import *
-from meta.classes import Unit
+from oxrse_unit_conv.si import *
+from oxrse_unit_conv.meta.classes import Unit
 
 # second
 minute = Unit(name='minute', abbr='min', si=second, to_si_fun=lambda n: n * 60)

src/tests/test_conversion_core.py

@@ -1,6 +1,6 @@
 import unittest
 from oxrse_unit_conv.meta import classes
-from oxrse_unit_conv import kilometer, m, m2, m3, s, hour
+from oxrse_unit_conv.units import kilometer, m, m2, m3, s, hour
 
 
 class TestConversionCore(unittest.TestCase):