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Python objects and methods

Here are important python objects and their methods
int __mul__, __add__, __eq__, __ge__, __mod__, __pow__
float .is_integer()
string .upper(), .endswith(), .split()
bool .numerator .__abs__()
list .append, .pop, __len__() / slicing
tuple
dict .items(), .keys(), .values() / slicing
pd.Series .sum(), .stack(), .groupby(), .resample(), .sort_values(), .sort_index(), .iloc
pd.DataFrame

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managing servers using python

Fabric is a high level Python library designed to execute shell commands remotely over SSH, yielding useful Python objects in return:
"""
a#!/usr/bin/env python
from fabric.api import hosts, run, task
from fabric.tasks import execute

@task
@hosts(['shantanu@1.2.3.4:1224'])
def test():
run('hostname -f')

if __name__ == '__main__':
execute(test)
"""

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About python

1 everything is an object (class instances)
2 methods depends upon class of the instance
3 int,str and tuple are immutability, dict and list are mutable
4 dict keys are unique but series allows duplicate
5 list comprehension
6 slice of dict, str, list
7 dynamically typed
8 iterables are str, list, dict but int are not
9 functions are first class objects and can be applied just like built-in classes

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Installing python as a single file

wget https://downloads.egenix.com/python/install-pyrun

chmod 700 install-pyrun

mkdir /mypython

./install-pyrun mypython/

/mypython/bin/pip install boto

/mypython/bin/python

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