Python CLI or Jupyter Notebook¶

We can use Python CLI or Jupyter Notebook to explore APIs.

We can launch Python CLI using python command.
We can launch the Jupyter Notebook using the jupyter notebook command.
A web service will be started on port number 8888 by default.
We can go to the browser and connect to the web server using IP address and port number.
We should be able to explore code in interactive fashion.
We can issue magic commands such as %%sh to run shell commands, %%md to document using markdown etc.

Tasks¶

Let us perform these tasks to just recollect how to use Python CLI or Jupyter Notebook.

Create variables i and j assigning 10 and 20.5 respectively.

i = 10
j = 20.5

Add the values and assign result to res.

res = i + j
print(str(res))

30.5

Get the type of i, j and res.

type(i)

int

type(j)

float

type(res)

float

Get the help on int.

help(int)

int?

Init signature: int(self, /, *args, **kwargs)
Docstring:     
int(x=0) -> integer
int(x, base=10) -> integer

Convert a number or string to an integer, or return 0 if no arguments
are given.  If x is a number, return x.__int__().  For floating point
numbers, this truncates towards zero.

If x is not a number or if base is given, then x must be a string,
bytes, or bytearray instance representing an integer literal in the
given base.  The literal can be preceded by '+' or '-' and be surrounded
by whitespace.  The base defaults to 10.  Valid bases are 0 and 2-36.
Base 0 means to interpret the base from the string as an integer literal.
>>> int('0b100', base=0)
4
Type:           type
Subclasses:     bool, IntEnum, IntFlag, _NamedIntConstant

Get the help on startswith that is available on str.

help(str.startswith)

Help on method_descriptor:

startswith(...)
    S.startswith(prefix[, start[, end]]) -> bool
    
    Return True if S starts with the specified prefix, False otherwise.
    With optional start, test S beginning at that position.
    With optional end, stop comparing S at that position.
    prefix can also be a tuple of strings to try.

str.startswith?

Docstring:
S.startswith(prefix[, start[, end]]) -> bool

Return True if S starts with the specified prefix, False otherwise.
With optional start, test S beginning at that position.
With optional end, stop comparing S at that position.
prefix can also be a tuple of strings to try.
Type:      method_descriptor

Mastering Pyspark

Python CLI or Jupyter Notebook¶

Tasks¶