[New-bugs-announce] [issue43966] F String bugs with numpy.float32

[GPH]

New submission from GPH <gphsmail at 163.com>:

When using F String with numpy.float32 variable, the output is wrong!

Example code:

```python
import numpy as np

floatNumber = 0.00123
print(f"num:{floatNumber}")

npFloatNumber = np.float32(0.00123)
print(f"num:{npFloatNumber}")
```

The output is:

```
num:0.00123
num:0.001230000052601099
```

As we can see, the value of np.float32 is wrong!

----------
messages: 392192
nosy: PingHGao
priority: normal
severity: normal
status: open
title: F String bugs with numpy.float32
type: behavior
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43966>
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