python package install error and little code bugs

When you install packages using setup.py, the error:

(py37) C:\Users\weda\Phd\python packages\visibility_graph-0.4>python setup.py install

Traceback (most recent call last):

File "setup.py", line 11, in

long_description=readme(),

File "setup.py", line 5, in readme

return f.read()

File "C:\Users\weda\AppData\Local\Continuum\anaconda3\envs\py37\lib\encodings\cp1252.py", line 23, in decode

return codecs.charmap_decode(input,self.errors,decoding_table)[0]

UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 1725: character maps to

Here's the solution: stackoverflow

The difference of ndarray declare.

a = np.array([0,0,24])

a.shape

(3,)

a

array([ 0,  0, 24])

a = np.array((1,2))

a

array([1, 2])

a.shape

(2,)

There's no difference of passing parameter in () or [] format. And the first parameter represent the data value.

numpy.array(object, dtype=None, copy=True, order='K', subok=False, ndmin=0)

a = np.zeros([0,0,24])

a.shape

(0, 0, 24)

a

array([], shape=(0, 0, 24), dtype=float64)

numpy.zeros(shape, dtype=float, order='C'); The first parameter is shape with [].

The problem when converting list into ndarray: list长度不规则

另一个小问题，赋值问题，a = a.tolist(), dataframe = dataframe.drop([count]); 这些函数返回新的值，需要重新赋值。

list.remove(), the parameter is the value of deleted item and cannot be the index. Otherwise, you need to use 'del' function or 'pop' function. From here.

巴特西

python package install error and little code bugs

When you install packages using setup.py, the error:

The difference of ndarray declare.

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