Martin Ruppert <ruppert@hs-worms.de> wrote or quoted:

z=.4
nen=7

You need:

z = ".4"
nen = "7"

. Here's an script:

import decimal

z=0.4
nen=7
decimal.getcontext().prec=60 print(decimal.Decimal(z)/decimal.Decimal(nen),end=' ');print(f"decimal: {z}/{nen}")

z='0.4'
nen='7'
decimal.getcontext().prec=60 print(decimal.Decimal(z)/decimal.Decimal(nen),end=' ');print(f"decimal: {z}/{nen}")

. Before you go off half-cocked and start throwing shade about
a Python library in your subject line, maybe you oughta hit
the books and get your ducks in a row first

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