Question

I have this test code called table.py :

import numpy as np
from astropy.io import fits
counts = np.array([312, 334, 308, 317])
names = np.array(['NGC1', 'NGC2', 'NGC3', 'NGC4'])
c1 = fits.Column(name='target', format='10A', array=names)
c2 = fits.Column(name='counts', format='J', unit='DN', array=counts)
coldefs = fits.ColDefs([c1, c2])
tblHdu  = fits.TableHDU.from_columns(coldefs)
hdu     = fits.PrimaryHDU(np.random.randn(1000))
hduList = fits.HDUList([hdu])
hduList.append ( tblHdu )
hduList.writeto ( "test.fits", output_verify="ignore", overwrite=True )

And it produces an unwanted output like this :

python3 table.py 
A10
I11

I would like to get rid of those "A10" and "I11" printouts, how can I do this ?

Answer 1

升级天蝎座。

2016年11月4日在提交aaaa6fb中引入了意外的print()功能，该功能仅在2017年11月8日的提交68050d8中删除。 / p>

版本2.0.4和3.0（当前）在2017年11月8日之后发布，并且不再有令人讨厌的print()输出。

Answer 2

在写出FITS文件时，您可以暂时禁止标准系统输出。以下代码段将标准输出重定向至/dev/null，保存test.fits，然后将输出恢复为sys.stdout：

import os
import sys 
with open(os.devnull, "w") as stdout_null:
    stdout_sys = sys.stdout
    sys.stdout = stdout_null
    hduList.writeto ("test.fits", output_verify="ignore", overwrite=True)
    sys.stdout = stdout_sys

How to stop astropy printing dtypes when writing a fits file with a table?

2 个答案: