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A Pressure Converter Script (#242)
* added the pressure converter script * added the pressure converter script * added the pressure converter script
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12
Pressure_Converter/README.md
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12
Pressure_Converter/README.md
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# Developed and maintained by [Osagie Iyayi](https://github.com/E-wave112)
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- This simple program converts between different common units of pressure such as
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Pascal(Pa),Bar(bar),Millimeter Mercury(mmHg) and atmosphere(atm).
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the test cases are based on the fact that the value of pressure
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on it's own can never be negative,except in cases where it is relative to another kind of pressure.
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- Run the doctest via the command
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```
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$ python -m doctest -v Pressure_Converter/pressure_converter_script.py
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```
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321
Pressure_Converter/pressure_converter_script.py
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321
Pressure_Converter/pressure_converter_script.py
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from typing import Union
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def atmospeheres_to_bars(atm: float, unit: str) -> Union[float, str]:
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"""
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This function converts atm to bar
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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>>> atmospeheres_to_bars(2.5, "atm")
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2.533125
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>>> atmospeheres_to_bars("12", "atm")
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12.158999999999999
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>>> atmospeheres_to_bars(0, "atm")
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0.0
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>>> atmospeheres_to_bars(35, "mmHg")
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'Invalid unit'
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>>> atmospeheres_to_bars("atmospheres", "atm")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'atmospheres'
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"""
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if unit == "atm":
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bar = float(atm) * 1.01325
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return bar
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else:
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return "Invalid unit"
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def bars_to_atmospheres(bar: float, unit: str) -> Union[float, str]:
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"""
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This function converts bar to atm
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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>>> bars_to_atmospheres(36, "bar")
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35.529237601776465
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>>> bars_to_atmospheres("57.6", "bar")
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56.84678016284234
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>>> bars_to_atmospheres(0, "bar")
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0.0
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>>> bars_to_atmospheres(35, "Pa")
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'Invalid unit'
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>>> bars_to_atmospheres("barrs", "bar")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'barrs'
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"""
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if unit == "bar":
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atm = float(bar) / 1.01325
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return atm
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else:
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return "Invalid unit"
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def atmospheres_to_milimeter_mercury(atm: float, unit: str) -> Union[float, str]:
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"""
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This function converts atm to mmHg
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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>>> atmospheres_to_milimeter_mercury(2, "atm")
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1520.0
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>>> atmospheres_to_milimeter_mercury("6.9", "atm")
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5244.0
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>>> atmospheres_to_milimeter_mercury(0, "atm")
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0.0
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>>> atmospheres_to_milimeter_mercury(35, "torr")
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'Invalid unit'
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>>> atmospheres_to_milimeter_mercury("atmos", "atm")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'atmos'
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"""
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if unit == "atm":
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mm_hg = float(atm) * 760
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return mm_hg
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else:
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return "Invalid unit"
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def milimeter_mercury_to_atmospheres(mm_hg: float, unit: str) -> Union[float, str]:
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"""
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This function converts mmHg to atm
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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>>> milimeter_mercury_to_atmospheres(23506.92, "mmHg")
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30.93015789473684
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>>> milimeter_mercury_to_atmospheres("304000", "mmHg")
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400.0
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>>> milimeter_mercury_to_atmospheres(0, "mmHg")
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0.0
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>>> milimeter_mercury_to_atmospheres(35, "bar")
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'Invalid unit'
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>>> milimeter_mercury_to_atmospheres("merc", "mmHg")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'merc'
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"""
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if unit == "mmHg":
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atm = float(mm_hg) / 760
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return atm
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else:
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return "Invalid unit"
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def atmospheres_to_pascals(atm: float, unit: str) -> Union[float, str]:
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"""
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This function converts atm to Pa
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> atmospheres_to_pascals(5.4, "atm")
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547155.0
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>>> atmospheres_to_pascals("7.098", "atm")
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719204.85
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>>> atmospheres_to_pascals(0, "atm")
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0.0
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>>> atmospheres_to_pascals(35, "Pa")
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'Invalid unit'
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>>> atmospheres_to_pascals("ats", "atm")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'ats'
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"""
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if unit == "atm":
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pa = float(atm) * 101325
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return pa
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else:
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return "Invalid unit"
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def pascals_to_atmospheres(pa: float, unit: str) -> Union[float, str]:
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"""
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This function converts Pa to atm
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Wikipedia reference: https://en.wikipedia.org/wiki/Standard_atmosphere_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> pascals_to_atmospheres(202650, "Pa")
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2.0
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>>> pascals_to_atmospheres("1013250", "Pa")
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10.0
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>>> pascals_to_atmospheres(0, "Pa")
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0.0
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>>> pascals_to_atmospheres(35, "mmhg")
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'Invalid unit'
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>>> pascals_to_atmospheres("Pas", "Pa")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'Pas'
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"""
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if unit == "Pa":
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atm = float(pa) / 101325
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return atm
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else:
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return "Invalid unit"
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def bars_to_milimeter_mercury(bar: float, unit: str) -> Union[float, str]:
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"""
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This function converts bar to mmHg
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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>>> bars_to_milimeter_mercury(3.75, "bar")
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2812.725
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>>> bars_to_milimeter_mercury("0.82", "bar")
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615.0491999999999
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>>> bars_to_milimeter_mercury(0, "bar")
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0.0
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>>> bars_to_milimeter_mercury(3, "atm")
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'Invalid unit'
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>>> bars_to_milimeter_mercury("brs", "bar")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'brs'
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"""
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if unit == "bar":
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mm_hg = float(bar) * round(760 / 1.01325, 2)
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return mm_hg
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else:
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return "Invalid unit"
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def milimeter_mercury_to_bars(mm_hg: float, unit: str) -> Union[float, str]:
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"""
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This function converts mmHg to bar
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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>>> milimeter_mercury_to_bars(4970.5, "mmHg")
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6.626803189078208
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>>> milimeter_mercury_to_bars("378", "mmHg")
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0.503959683225342
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>>> milimeter_mercury_to_bars(0, "mmHg")
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0.0
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>>> milimeter_mercury_to_bars(3, "bar")
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'Invalid unit'
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>>> milimeter_mercury_to_bars("brs", "mmHg")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'brs'
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"""
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if unit == "mmHg":
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bar = float(mm_hg) / round(760 / 1.01325, 2)
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return bar
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else:
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return "Invalid unit"
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def bars_to_pascals(bar: float, unit: str) -> Union[float, str]:
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"""
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This function converts bar to Pa
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> bars_to_pascals(0.653, "bar")
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65300.0
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>>> bars_to_pascals("1.2", "bar")
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120000.0
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>>> bars_to_pascals(0, "bar")
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0.0
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>>> bars_to_pascals(3.1, "Pa")
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'Invalid unit'
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>>> bars_to_pascals("bP", "bar")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'bP'
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"""
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if unit == "bar":
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pa = float(bar) * 100000
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return pa
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else:
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return "Invalid unit"
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def pascals_to_bars(pa: float, unit: str) -> Union[float, str]:
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"""
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This function converts Pa to bar
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Wikipedia reference: https://en.wikipedia.org/wiki/Bar_(unit)
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> pascals_to_bars(45000, "Pa")
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0.45
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>>> pascals_to_bars("1200000", "Pa")
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12.0
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>>> pascals_to_bars(0, "Pa")
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0.0
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>>> pascals_to_bars(3.1, "mmHg")
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'Invalid unit'
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>>> pascals_to_bars("pass", "Pa")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'pass'
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"""
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if unit == "Pa":
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bar = float(pa) / 100000
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return bar
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else:
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return "Invalid unit"
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def milimeter_mercury_to_pascals(mm_hg: float, unit: str) -> Union[float, str]:
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"""
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This function converts mmHg to Pa
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> milimeter_mercury_to_pascals(25, "mmHg")
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3333.0
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>>> milimeter_mercury_to_pascals("652", "mmHg")
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86924.64
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>>> milimeter_mercury_to_pascals(0, "mmHg")
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0.0
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>>> milimeter_mercury_to_pascals(342.1, "bar")
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'Invalid unit'
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>>> milimeter_mercury_to_pascals("mercurium", "mmHg")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'mercurium'
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"""
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if unit == "mmHg":
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pa = float(mm_hg) * round(101325 / 760, 2)
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return pa
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else:
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return "Invalid unit"
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def pascals_to_milimeter_mercury(pa: float, unit: str) -> Union[float, str]:
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"""
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This function converts Pa to mmHg
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Wikipedia reference: https://en.wikipedia.org/wiki/Millimetre_of_mercury
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Wikipedia reference: https://en.wikipedia.org/wiki/Pascal_(unit)
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>>> pascals_to_milimeter_mercury(153000, "Pa")
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1147.6147614761476
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>>> pascals_to_milimeter_mercury("97650.8", "Pa")
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732.4542454245425
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>>> pascals_to_milimeter_mercury(0, "Pa")
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0.0
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>>> pascals_to_milimeter_mercury(342.1, "mmhg")
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'Invalid unit'
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>>> pascals_to_milimeter_mercury("merc", "Pa")
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Traceback (most recent call last):
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...
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ValueError: could not convert string to float: 'merc'
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"""
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if unit == "Pa":
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mm_hg = float(pa) / round(101325 / 760, 2)
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return mm_hg
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else:
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return "Invalid unit"
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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1
Pressure_Converter/requirements.txt
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1
Pressure_Converter/requirements.txt
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@ -0,0 +1 @@
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doctest
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@ -185,6 +185,7 @@ So far, the following projects have been integrated to this repo:
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|[csv_to_json](https://github.com/hastagAB/Awesome-Python-Scripts/tree/master/csv_to_json)|[MoiZ](https://github.com/TechBoyy6)|
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|[Battery_notification](https://github.com/hastagABAwesome-Python-Scripts/Battery_notification/)|[Krishna Sharma](https://github.com/krishnasharma1386)|
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|[Steg_Tool](https://github.com/hastagABAwesome-Python-Scripts/Steg_Tool/)|[Shankar JP](https://github.com/shankarjp)|
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|[Pressure_Converter](https://github.com/E-wave112/Awesome-Python-Scripts/tree/master/Pressure_Converter)|[E-Wave](https://github.com/E-wave112)|
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## How to use :
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