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| Version: 1.2.241001.1 (As in: Main.sub.YYMMDD.rev) |
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Installation
This package can be installed | upgraded using pip:
pip install -U plaintools
Introduction
PlainTools is a Python 3 library designed to introduce new features and fix awkward common interactions present in the Python 3 native ecosystem.
Most functions are prefixed with p (as in pt.plist or pt.pround)
to avoid homonyms. The p stands for Plain and are the namesake of this package.
Some simple, yet relevant examples using the Plain Number(pt.pnumber) function are:
>>> import PlainTools as pt
>>> print(0.1 * 3)
0.30000000000000004
>>> print(pt.pnumber(0.1 * 3))
0.3 # Deals with float imprecision errors.
>>> print(5 / 3)
1.6666666666666667
>>> print(pt.pnumber("5 / 3"))
1.666... # '...' present only in string format; The true value is still float(5/3).
>>> print(7 / 53)
0.0958904109589041
>>> print(pt.pnumber(7 / 53))
0.095890410958904109589041... # Can detect long chains of repeating decimals!
>>> print(0.9999999999999988)
0.9999999999999988
>>> print(pt.pnumber(0.9999999999999988))
0.9999999999999988 # No loss of precision up to 15 literal digits.
>>> print(0.00000000001 ** 3)
9.999999999999999e-34
>>> print(pt.pnumber(0.00000000001 ** 3))
1e-33 # Corrects scientific-notated float imprecisions as well.
>>> print(pt.pnumber("math.pi")) # A safe variation of 'eval()' is used, as shown below!
3.141592653589793
# https://stackoverflow.com/a/1933463/26469850
>>> print(pt.pnumber("import shutil; shutil.rmtree('/.')")) # Example of malicious use.
PlainTools.SEVAL.UnsafeError: Invalid syntax in expression
- More about Seval (Safe Eval).
Simple, right?
Countless more examples can be found in the Library's Documentation Page, so please check it out!
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