how to increase number of floating points in python

I need to calculate 100 floating points of phi φ

it's defeat showing only 15 floating points

but I need 100 of floating points.is there an easy way rather than implement pHi from beginning

If you want more numbers after decimal use decimal module

from decimal import Decimal, setcontext, Context

setcontext(Context(prec=100))

a = Decimal( 22/7)

print(a)
# 3.142857142857142793701541449991054832935333251953125

# @ Lutz Lehmann comment

a=Decimal(22)/7
print(a)
# 3.142857142857142857142857142857142857142857142857142857142857142857142857142857142857142857142857143

Try this

you can get the 100 or more digits of pi using mpmath

from mpmath import mp


print("100 digits")
mp.dps = 100  # set number of digits
print(mp.pi)

print("\n200 digits")
mp.dps = 200  # set number of digits
print(mp.pi)

print("\n500 digits")
mp.dps = 500  # set number of digits
print(mp.pi)

print("\n1000 digits")
mp.dps = 1000  # set number of digits
print(mp.pi)

OUTPUT

100 digits
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117068

200 digits
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930382

500 digits
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491

1000 digits
3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609433057270365759591953092186117381932611793105118548074462379962749567351885752724891227938183011949129833673362440656643086021394946395224737190702179860943702770539217176293176752384674818467669405132000568127145263560827785771342757789609173637178721468440901224953430146549585371050792279689258923542019956112129021960864034418159813629774771309960518707211349999998372978049951059731732816096318595024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420199

GUI based

from customtkinter import *
from tkinter import StringVar
from mpmath import mp
from threading import Thread


def generatePi():
    btn._state = "Disabled"
    root.focus_force()
    def inner():
        try:
            digit = int(var.get())
        except ValueError:
            pass
        else:
            mp.dps = digit
            text.delete(1.0, END)
            text.insert(1.0, mp.pi)
        finally:
            btn._state = "normal"


    Thread(target=inner).start()
    

def selectAll(e):
    text.tag_add(SEL, "1.0", END)
    text.mark_set(INSERT, "1.0")

set_appearance_mode("dark")
set_default_color_theme("green")

root = CTk()
root.geometry("900x700+300+100")

root.resizable(False, False)

CTkLabel(root, text="Pi Constant Generator", font=CTkFont("Comic Sans MS", 40, "normal")).grid(column=0, row=0, columnspan=100, pady=(30, 50))
text = CTkTextbox(master=root, width=500, height=500)
text.grid(column=0, row=1, padx = 200, columnspan=4)


var = StringVar(value=100)
CTkEntry(master=root,width=80, textvariable=var).grid(column=0, row=3, padx = (200, 0), pady=(10, 70))

btn = CTkButton(master=root, command=generatePi, text="Generate")
btn.grid(column=1, row=3, pady=(10, 70))

text.bind("<FocusIn>", selectAll)
root.mainloop()

PREVIEW