Python将十进制定点列表转换为弧度 [英] Python Convert Decimal Fixed Point List to Radians

问题描述

我有一个十进制定点数列表:

I have a list of decimal fixed point numbers:

latitude = Places.query.with_entities(Places.latitude).all()
result = []
for i in range(len(latitude)):
    result.append(latitude[i][0])
print result

纬度的输出是this我想将它们映射到弧度.所以，我这样做了:

The output of latitude is this I wanted to map them to Radians. So, I did this:

lat_ = map(lambda i: radians(i), result)

但出现错误TypeError: a float is required

But got an errorTypeError: a float is required

我想知道执行此操作的正确方法是什么.`

I want to know what is the correct way to do this operation. `

编辑

现在的结果是这样的:

[28.633, 29.333,...]

错误是:

TypeError: float() argument must be a string or a number

推荐答案

试试这个:

rads = [x['latitude'] for x in result]
_lat = map(lambda i: radians(i), rads)

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