Create weight_conversion.py (TheAlgorithms#3964)

* Create weight_conversion.py
* Update weight_conversion.py

Co-authored-by: Dhruv Manilawala <[email protected]>

Author: AnubhavSolanki

Diff for: conversions/weight_conversion.py

@@ -0,0 +1,287 @@
+"""
+Conversion of weight units.
+
+__author__ = "Anubhav Solanki"
+__license__ = "MIT"
+__version__ = "1.0.0"
+__maintainer__ = "Anubhav Solanki"
+__email__ = "[email protected]"
+
+USAGE :
+-> Import this file into their respective project.
+-> Use the function weight_conversion() for conversion of weight units.
+-> Parameters :
+    -> from_type : From which type you want to convert
+    -> to_type : To which type you want to convert
+    -> value : the value which you want to convert
+
+REFERENCES :
+
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Kilogram
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Gram
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Tonne
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Long_ton
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Short_ton
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Pound
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Ounce
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Fineness#Karat
+-> Wikipedia reference: https://en.wikipedia.org/wiki/Dalton_(unit)
+"""
+
+KILOGRAM_CHART = {
+    "kilogram": 1,
+    "gram": pow(10, 3),
+    "milligram": pow(10, 6),
+    "metric-ton": pow(10, -3),
+    "long-ton": 0.0009842073,
+    "short-ton": 0.0011023122,
+    "pound": 2.2046244202,
+    "ounce": 35.273990723,
+    "carrat": 5000,
+    "atomic-mass-unit": 6.022136652e26,
+}
+
+WEIGHT_TYPE_CHART = {
+    "kilogram": 1,
+    "gram": pow(10, -3),
+    "milligram": pow(10, -6),
+    "metric-ton": pow(10, 3),
+    "long-ton": 1016.04608,
+    "short-ton": 907.184,
+    "pound": 0.453592,
+    "ounce": 0.0283495,
+    "carrat": 0.0002,
+    "atomic-mass-unit": 1.660540199e-27,
+}
+
+
+def weight_conversion(from_type: str, to_type: str, value: float) -> float:
+    """
+    Conversion of weight unit with the help of KILOGRAM_CHART
+
+    "kilogram" : 1,
+    "gram" : pow(10, 3),
+    "milligram" : pow(10, 6),
+    "metric-ton" : pow(10, -3),
+    "long-ton" : 0.0009842073,
+    "short-ton" : 0.0011023122,
+    "pound" : 2.2046244202,
+    "ounce" : 35.273990723,
+    "carrat" : 5000,
+    "atomic-mass-unit" : 6.022136652E+26
+
+    >>> weight_conversion("kilogram","kilogram",4)
+    4
+    >>> weight_conversion("kilogram","gram",1)
+    1000
+    >>> weight_conversion("kilogram","milligram",4)
+    4000000
+    >>> weight_conversion("kilogram","metric-ton",4)
+    0.004
+    >>> weight_conversion("kilogram","long-ton",3)
+    0.0029526219
+    >>> weight_conversion("kilogram","short-ton",1)
+    0.0011023122
+    >>> weight_conversion("kilogram","pound",4)
+    8.8184976808
+    >>> weight_conversion("kilogram","ounce",4)
+    141.095962892
+    >>> weight_conversion("kilogram","carrat",3)
+    15000
+    >>> weight_conversion("kilogram","atomic-mass-unit",1)
+    6.022136652e+26
+    >>> weight_conversion("gram","kilogram",1)
+    0.001
+    >>> weight_conversion("gram","gram",3)
+    3.0
+    >>> weight_conversion("gram","milligram",2)
+    2000.0
+    >>> weight_conversion("gram","metric-ton",4)
+    4e-06
+    >>> weight_conversion("gram","long-ton",3)
+    2.9526219e-06
+    >>> weight_conversion("gram","short-ton",3)
+    3.3069366000000003e-06
+    >>> weight_conversion("gram","pound",3)
+    0.0066138732606
+    >>> weight_conversion("gram","ounce",1)
+    0.035273990723
+    >>> weight_conversion("gram","carrat",2)
+    10.0
+    >>> weight_conversion("gram","atomic-mass-unit",1)
+    6.022136652e+23
+    >>> weight_conversion("milligram","kilogram",1)
+    1e-06
+    >>> weight_conversion("milligram","gram",2)
+    0.002
+    >>> weight_conversion("milligram","milligram",3)
+    3.0
+    >>> weight_conversion("milligram","metric-ton",3)
+    3e-09
+    >>> weight_conversion("milligram","long-ton",3)
+    2.9526219e-09
+    >>> weight_conversion("milligram","short-ton",1)
+    1.1023122e-09
+    >>> weight_conversion("milligram","pound",3)
+    6.6138732605999995e-06
+    >>> weight_conversion("milligram","ounce",2)
+    7.054798144599999e-05
+    >>> weight_conversion("milligram","carrat",1)
+    0.005
+    >>> weight_conversion("milligram","atomic-mass-unit",1)
+    6.022136652e+20
+    >>> weight_conversion("metric-ton","kilogram",2)
+    2000
+    >>> weight_conversion("metric-ton","gram",2)
+    2000000
+    >>> weight_conversion("metric-ton","milligram",3)
+    3000000000
+    >>> weight_conversion("metric-ton","metric-ton",2)
+    2.0
+    >>> weight_conversion("metric-ton","long-ton",3)
+    2.9526219
+    >>> weight_conversion("metric-ton","short-ton",2)
+    2.2046244
+    >>> weight_conversion("metric-ton","pound",3)
+    6613.8732606
+    >>> weight_conversion("metric-ton","ounce",4)
+    141095.96289199998
+    >>> weight_conversion("metric-ton","carrat",4)
+    20000000
+    >>> weight_conversion("metric-ton","atomic-mass-unit",1)
+    6.022136652e+29
+    >>> weight_conversion("long-ton","kilogram",4)
+    4064.18432
+    >>> weight_conversion("long-ton","gram",4)
+    4064184.32
+    >>> weight_conversion("long-ton","milligram",3)
+    3048138240.0
+    >>> weight_conversion("long-ton","metric-ton",4)
+    4.06418432
+    >>> weight_conversion("long-ton","long-ton",3)
+    2.999999907217152
+    >>> weight_conversion("long-ton","short-ton",1)
+    1.119999989746176
+    >>> weight_conversion("long-ton","pound",3)
+    6720.000000049448
+    >>> weight_conversion("long-ton","ounce",1)
+    35840.000000060514
+    >>> weight_conversion("long-ton","carrat",4)
+    20320921.599999998
+    >>> weight_conversion("long-ton","atomic-mass-unit",4)
+    2.4475073353955697e+30
+    >>> weight_conversion("short-ton","kilogram",3)
+    2721.5519999999997
+    >>> weight_conversion("short-ton","gram",3)
+    2721552.0
+    >>> weight_conversion("short-ton","milligram",1)
+    907184000.0
+    >>> weight_conversion("short-ton","metric-ton",4)
+    3.628736
+    >>> weight_conversion("short-ton","long-ton",3)
+    2.6785713457296
+    >>> weight_conversion("short-ton","short-ton",3)
+    2.9999999725344
+    >>> weight_conversion("short-ton","pound",2)
+    4000.0000000294335
+    >>> weight_conversion("short-ton","ounce",4)
+    128000.00000021611
+    >>> weight_conversion("short-ton","carrat",4)
+    18143680.0
+    >>> weight_conversion("short-ton","atomic-mass-unit",1)
+    5.463186016507968e+29
+    >>> weight_conversion("pound","kilogram",4)
+    1.814368
+    >>> weight_conversion("pound","gram",2)
+    907.184
+    >>> weight_conversion("pound","milligram",3)
+    1360776.0
+    >>> weight_conversion("pound","metric-ton",3)
+    0.001360776
+    >>> weight_conversion("pound","long-ton",2)
+    0.0008928571152432
+    >>> weight_conversion("pound","short-ton",1)
+    0.0004999999954224
+    >>> weight_conversion("pound","pound",3)
+    3.0000000000220752
+    >>> weight_conversion("pound","ounce",1)
+    16.000000000027015
+    >>> weight_conversion("pound","carrat",1)
+    2267.96
+    >>> weight_conversion("pound","atomic-mass-unit",4)
+    1.0926372033015936e+27
+    >>> weight_conversion("ounce","kilogram",3)
+    0.0850485
+    >>> weight_conversion("ounce","gram",3)
+    85.0485
+    >>> weight_conversion("ounce","milligram",4)
+    113398.0
+    >>> weight_conversion("ounce","metric-ton",4)
+    0.000113398
+    >>> weight_conversion("ounce","long-ton",4)
+    0.0001116071394054
+    >>> weight_conversion("ounce","short-ton",4)
+    0.0001249999988556
+    >>> weight_conversion("ounce","pound",1)
+    0.0625000000004599
+    >>> weight_conversion("ounce","ounce",2)
+    2.000000000003377
+    >>> weight_conversion("ounce","carrat",1)
+    141.7475
+    >>> weight_conversion("ounce","atomic-mass-unit",1)
+    1.70724563015874e+25
+    >>> weight_conversion("carrat","kilogram",1)
+    0.0002
+    >>> weight_conversion("carrat","gram",4)
+    0.8
+    >>> weight_conversion("carrat","milligram",2)
+    400.0
+    >>> weight_conversion("carrat","metric-ton",2)
+    4.0000000000000003e-07
+    >>> weight_conversion("carrat","long-ton",3)
+    5.9052438e-07
+    >>> weight_conversion("carrat","short-ton",4)
+    8.818497600000002e-07
+    >>> weight_conversion("carrat","pound",1)
+    0.00044092488404000004
+    >>> weight_conversion("carrat","ounce",2)
+    0.0141095962892
+    >>> weight_conversion("carrat","carrat",4)
+    4.0
+    >>> weight_conversion("carrat","atomic-mass-unit",4)
+    4.8177093216e+23
+    >>> weight_conversion("atomic-mass-unit","kilogram",4)
+    6.642160796e-27
+    >>> weight_conversion("atomic-mass-unit","gram",2)
+    3.321080398e-24
+    >>> weight_conversion("atomic-mass-unit","milligram",2)
+    3.3210803980000002e-21
+    >>> weight_conversion("atomic-mass-unit","metric-ton",3)
+    4.9816205970000004e-30
+    >>> weight_conversion("atomic-mass-unit","long-ton",3)
+    4.9029473573977584e-30
+    >>> weight_conversion("atomic-mass-unit","short-ton",1)
+    1.830433719948128e-30
+    >>> weight_conversion("atomic-mass-unit","pound",3)
+    1.0982602420317504e-26
+    >>> weight_conversion("atomic-mass-unit","ounce",2)
+    1.1714775914938915e-25
+    >>> weight_conversion("atomic-mass-unit","carrat",2)
+    1.660540199e-23
+    >>> weight_conversion("atomic-mass-unit","atomic-mass-unit",2)
+    1.999999998903455
+    """
+    if to_type not in KILOGRAM_CHART or from_type not in WEIGHT_TYPE_CHART:
+        raise ValueError(
+            f"Invalid 'from_type' or 'to_type' value: {from_type!r}, {to_type!r}\n"
+            f"Supported values are: {', '.join(WEIGHT_TYPE_CHART)}"
+        )
+    return value * KILOGRAM_CHART[to_type] * WEIGHT_TYPE_CHART[from_type]
+
+
+if __name__ == "__main__":
+
+    import doctest
+
+    doctest.testmod()