<jupyter_start><jupyter_text>**Introduction to Python**  the shell window can be use as a normal calculator we can add numbers diretly without assigning a variable and no need for including libraries<jupyter_code>45+25  #adding 2 numbers
56/8 #divide
a=10.5
b=52  
a+b
a
print("saga")
type(a)
type("saga")
type('*')
type(12.5)
dir(a)
x=float(input("enter x"))
type(x)
x<jupyter_output><empty_output>
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{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '432789', 'license': 'MIT', 'n_tokens_mistral': 161, 'n_tokens_neox': 151, 'n_words': 47, 'path': 'python/intro.ipynb', 'repo_name': 'partha235/online_class', 'size': '399'}