b/t/test_codegen.py: fix 2.00000000000000 == 2 #226

Job	Run time
Determine Python versions	4s
Determine Python versions	4s
Build auto64 🎡 and source 📦 on Linux	6m 49s
Build auto64 🎡 and source 📦 on Linux	6m 49s
Build 🎡 on windows-latest	7m 52s
Build 🎡 on windows-latest	7m 52s
Build aarch64 🎡 and source 📦 on Linux	23m 43s
Build aarch64 🎡 and source 📦 on Linux	23m 43s
Build 🎡 on macOS-12	3m 45s
Build 🎡 on macOS-12	3m 45s
Build 🎡 on macOS-14	1m 42s
Build 🎡 on macOS-14	1m 42s
Build docker image	10s
Build docker image	19s
Publish release 📦 to PyPI	0s
Publish release 📦 to PyPI	0s
Publish development 📦 to TestPyPI	0s
Publish development 📦 to TestPyPI	0s
	1h 28m 19s

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