Welcome folks today in this blog post we will be building a bmi calculator in python using wxpython library. All the full source code of the application is shown below.
Get Started
In order to get started you need to install the following library using the pip command as shown below
pip install wxpython
After installing this library you need to make an BMI.py file and copy paste the following code
BMI.py
'''
Created on Dec 29, 2013
@author: Tuna
'''
class User():
def __init__(self):
self.bmi_dict = {
'very severely underweight': [0,150],
'severly underweight':[150,160],
'underweight':[160,180],
'normal (healthy weight)':[180,250],
'overweight':[250,300],
'moderately obese':[300,350],
'severely obese':[350,400],
'very severely obese':[400,1000]
}
def bmi_calc(self):
if self.height=='0':
return 0
else:
return (float(self.weight)/(float(self.height)**2))*703
def category(self):
for cat in self.bmi_dict:
updbmi = int(round(self.bmi*10))
if updbmi in range(self.bmi_dict[cat][0],self.bmi_dict[cat][1]):
return cat
return None
#===============================================================================
# test1=User()
# test1.weight=270
# test1.height=73
# test1.bmi=test1.bmi_calc()
# test1.bmi=int(round(test1.bmi,0))
# assert(test1.bmi==36)
# test1.bmi_category=test1.category()
# assert(test1.bmi_category=='severely obese')
#
# test2=User()
# test2.weight=130
# test2.height=65
# test2.bmi=test2.bmi_calc()
# test2.bmi=int(round(test2.bmi,0))
# assert(test2.bmi==22)
# test2.bmi_category=test2.category()
# assert(test2.bmi_category=='normal (healthy weight)')
#===============================================================================
Now create another uiDesktop.py file and copy paste the following code
uiDesktop.py
'''
Created on Dec 30, 2013
@author: Tuna
'''
import wx
import BMI
class RootApp(wx.Frame):
def closewindow(self,event):
'''Upon click of red X'''
self.Destroy()
def bmiFind(self,event):
# self.name=self.tc1.GetValue()
self.user=BMI.User()
self.weight=self.tc3.GetValue()
self.user.weight=self.weight
# wx.MessageBox('Weight='+self.weight,'Weight',wx.OK|wx.ICON_INFORMATION)
self.height=self.tc4.GetValue()
self.user.height=self.height
self.bmi=self.user.bmi_calc()
self.user.bmi=self.bmi
self.st5.SetLabel('Your BMI is '+str(int(self.bmi))+'.')
self.category=self.user.category()
self.st6.SetLabel('You are '+self.category+'.')
def __init__(self,parent,id):
wx.Frame.__init__(self,parent,id,title='BMI Calculator v0.1',size=(250,385))
panel = wx.Panel(self)
vbox = wx.BoxSizer(wx.VERTICAL)
'''Create BMI.User object'''
title1='''This program will calculate your BMI
(Body Mass Index) based on
your height and weight.'''
st8 = wx.StaticText(panel,label=title1,style=wx.ALIGN_CENTRE_HORIZONTAL)
title2='''Here is the BMI Range:
Very severely underweight: 0-14.9
Severly underweight: 15-15.9
Underweight: 16-17.9
Normal (healthy weight): 18-24.9
Overweight: 25-29.9
Moderately obese: 30-34.9
Severely obese: 35-39.9
Very severely obese: 40+
'''
st9 = wx.StaticText(panel,label=title2)
'''Name'''
# hbox1 = wx.BoxSizer(wx.HORIZONTAL)
# st1 = wx.StaticText(panel,label='Name:')
# hbox1.Add(st1,flag=wx.RIGHT,border=0)
# self.tc1 = wx.TextCtrl(panel)
# hbox1.Add(self.tc1,proportion=1,flag=wx.LEFT|wx.RIGHT,border=10)
'''Age'''
# hbox2 = wx.BoxSizer(wx.HORIZONTAL)
# st2a = wx.StaticText(panel,label='Age:')
# hbox2.Add(st2a,flag=wx.RIGHT,border=95)
# tc2 = wx.TextCtrl(panel)
# hbox2.Add(tc2,proportion=1,flag=wx.LEFT|wx.RIGHT,border=10)
# st2b = wx.StaticText(panel,label='years')
# hbox2.Add(st2b,flag=wx.RIGHT,border=10)
'''Weight'''
hbox3 = wx.BoxSizer(wx.HORIZONTAL)
st3a = wx.StaticText(panel,label='Weight:')
hbox3.Add(st3a,flag=wx.RIGHT,border=80)
self.tc3 = wx.TextCtrl(panel,value='0')
hbox3.Add(self.tc3,proportion=1,flag=wx.LEFT|wx.RIGHT,border=10)
st3b = wx.StaticText(panel,label='lbs')
hbox3.Add(st3b,flag=wx.RIGHT,border=10)
'''Height'''
hbox4 = wx.BoxSizer(wx.HORIZONTAL)
st4a = wx.StaticText(panel,label='Height:')
hbox4.Add(st4a,flag=wx.RIGHT,border=83)
self.tc4 = wx.TextCtrl(panel,value='0')
hbox4.Add(self.tc4,proportion=1,flag=wx.LEFT|wx.RIGHT,border=10)
st4b = wx.StaticText(panel,label='inches')
hbox4.Add(st4b,flag=wx.RIGHT,border=10)
'''BMI result'''
hbox5 = wx.BoxSizer(wx.HORIZONTAL)
self.st5 = wx.StaticText(panel,label='')
hbox5.Add(self.st5)
'''BMI Category result'''
hbox6 = wx.BoxSizer(wx.HORIZONTAL)
self.st6 = wx.StaticText(panel,label='')
hbox6.Add(self.st6)
'''Calculate Button'''
hbox7 = wx.BoxSizer(wx.HORIZONTAL)
buttonCalc = wx.Button(panel,wx.ID_ANY,label='Calculate BMI',size=(220,25))
hbox7.Add(buttonCalc,flag=wx.EXPAND)
'''Bind Buttons'''
self.Bind(wx.EVT_CLOSE, self.closewindow)
self.Bind(wx.EVT_BUTTON,self.bmiFind,source=buttonCalc)
'''Add horizontal boxes to vertical box'''
vbox.Add(st8,flag=wx.EXPAND|wx.TOP|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(st9,flag=wx.EXPAND|wx.TOP|wx.LEFT,border=10)
vbox.Add((-1,10))
# vbox.Add(hbox1,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
# vbox.Add(hbox2,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(hbox3,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(hbox4,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(hbox5,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(hbox6,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
vbox.Add(hbox7,flag=wx.EXPAND|wx.LEFT|wx.BOTTOM,border=10)
panel.SetSizer(vbox)
if __name__=='__main__':
app = wx.App()
frame = RootApp(parent=None,id=-1)
frame.Move((1450,500))
frame.Show()
app.MainLoop()
Now if you run the uiDesktop.py file and type the below command
python uiDesktop.py
