Float to Decimal with precision applied

[Archenemie]

I've tried every way I can possibly see to try and convert the value from the numctrl to a decimal but the problem lies with the retrieved value being a float.

I cant covert the float to a string first because it looses the trailing 0 in values such as 1.30 which I need because I am trying to represent currency.

Does anyone know the way forward or what I am doing wrong please?

import wx
from wx.lib.masked import NumCtrl
from decimal import *

class MyFrame(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Quick Silver', size = (180, 100))

        context = Context(prec = 2)
        setcontext(context)
        
        panel = wx.Panel(self)
        lolinput = wx.lib.masked.NumCtrl(panel, pos = (20,20), fractionWidth = 2) # for 2 decimal places.
        lolinput.SetValue(1.30)

        x = Decimal(lolinput.GetValue(), 2)
        context.create_decimal(x)
        print x

app = wx.App(redirect = False)
frame = MyFrame(parent = None, id = -1)
frame.Show()
app.MainLoop()

[Archenemie]

Tried quantize to no avail

import wx
from wx.lib.masked import NumCtrl
from decimal import *

class MyFrame(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Quick Silver', size = (180, 100))
        
        panel = wx.Panel(self)
        lolinput = wx.lib.masked.NumCtrl(panel, pos = (20,20), fractionWidth = 2) # for 2 decimal places.
        lolinput.SetValue(1.30)

        x = Decimal(lolinput.GetValue())
        Decimal(x).quantize(Decimal('.01'), rounding=ROUND_DOWN)

        print x

app = wx.App(redirect = False)
frame = MyFrame(parent = None, id = -1)
frame.Show()
app.MainLoop()

[woooee]

try and convert the value from the numctrl to a decimal

You can not convert a float to decimal.Decimal because floats are inaccurate past a certain number of digits. You will have to get/enter the value as a string and convert.

[Archenemie]

Solved it by fiddling around with data types

import wx
from wx.lib.masked import NumCtrl
from decimal import *

class MyFrame(wx.Frame):

    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id, 'Quick Silver', size = (180, 100))

        getcontext().prec = 3
        
        panel = wx.Panel(self)
        lolinput = wx.lib.masked.NumCtrl(panel, pos = (20,20), fractionWidth = 2) # for 2 decimal places.
        lolinput.SetValue(1.30)

        x = lolinput.GetValue()
        x = x + 0.001
        x = Decimal(x) - Decimal("0.001")
        Decimal(x).quantize(Decimal('.01'), rounding=ROUND_DOWN)

        print x

app = wx.App(redirect = False)
frame = MyFrame(parent = None, id = -1)
frame.Show()
app.MainLoop()

[Gribouillis]

Why not x = Decimal('{0:.2f}'.format(lolinput.GetValue()), 2) ?

[Archenemie]

Yours would more than likely have worked fine grib and I may actually use it tbh.

They way I solved it in the end was create a function call.

self.Round2DP(lolinput)

    def Round2DP(self, event):

        x = event.GetValue()
        x = x + 0.001
        x = Decimal(x) - Decimal("0.001")
        Decimal(x).quantize(Decimal('.01'), rounding=ROUND_DOWN)

        print x
        return x

[zentraders]

Why not just do something like
x = 12.30
x_str = "%5.2f" % (x+0.004)