to know for to do datascience
1- basic notion in algorithmic
2- basic notion in mathematical and statistical
3- know one or more programming languages from this list:
-Python
-C++
-C#
-Java
-etc...
4- Knowing these libraries is the basis in the case of python:
a- Pandas
b - Numpy
c - Scikit Learn
d - Matpolib
e - Seaborn
f -Statsmodels
g - Keras
h - NetworkX
i - BeautifulSoup
j - NLTK (Text_mining)
5- work, work and work to master all concepts around datascience