Python: Convert pressure in kilopascals to pounds
Python Basic: Exercise-67 with Solution
Write a Python program to convert pressure in kilopascals to pounds per square inch,a millimeter of mercury (mmHg) and atmosphere pressure.
Pictorial Presentation:
Sample Solution-1:
Python Code:
kpa = float(input("Input pressure in in kilopascals> "))
psi = kpa / 6.89475729
mmhg = kpa * 760 / 101.325
atm = kpa / 101.325
print("The pressure in pounds per square inch: %.2f psi" % (psi))
print("The pressure in millimeter of mercury: %.2f mmHg" % (mmhg))
print("Atmosphere pressure: %.2f atm." % (atm))
Sample Output:
Input pressure in in kilopascals> 12.35 The pressure in pounds per square inch: 1.79 psi The pressure in millimeter of mercury: 92.63 mmHg Atmosphere pressure: 0.12 atm.
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Sample Solution-2:
Python Code:
kpa= float(input("Input the pressure in kilopascals > "))
pressure_in_psi = round(kpa * 0.145038,3)
pressure_in_mmHg = round(kpa * 7.50062, 3)
pressure_in_atmp = round(kpa * 0.0098692382432766,3)
print(f"Pressure = {pressure_in_psi} psi \nor {pressure_in_mmHg} mmHg \nor {pressure_in_atmp} atmp")
Sample Output:
Input the pressure in kilopascals > 12.35 Pressure = 1.791 psi or 92.633 mmHg or 0.122 atmp
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
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