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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:

Convert pressure in kilopascals to pounds

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 

Python Code Editor:

 

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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")
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Ref: https://bit.ly/3fy0R6m