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Sunday, 17. March 2019
python itertools module

from itertools import groupby
s = 'abcccccbba'

for w, v in groupby(s):
print (''.join(w), ''.join(v))

a a
b b
c ccccc
b bb
a a

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Saturday, 16. March 2019
audio visual modules for Machine Learning

Here is the list of some of the modules used for audio-visual processing using deep learning.

chroma: Feature Learning for Chord Recognition: The Deep Chroma Extractor
MFCC: Mel-frequency cepstral coefficients (MFCCs) are coefficients that collectively make up an MFC
TCD-TIMIT: An Audio-Visual Corpus of Continuous Speech
librosa
RBF: Radial Basis Function
HMM: Hidden Markov Model
VGG: Resnet 50
voxceleb-luigi: Luigi pipeline to download VoxCeleb audio from YouTube and extract speaker segments
deepfakes
obamanet
yolo

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Tuesday, 8. January 2019
google module

module for google search

!pip install google

from googlesearch import search
for url in search('"Breaking Code" WordPress blog', stop=10):
print(url)

... Link (0 comments) ... Comment


Wednesday, 26. December 2018
Python date and time

from datetime import datetime
date_string = "21 June, 2018"
date_object = datetime.strptime(date_string, "%d %B, %Y")

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Sunday, 16. December 2018
Infer types in pandas

This will return the mixed datatypes but this can be slow.

df.applymap(type).nunique() > 1

Better approach pythonic approach would be...

from pandas.api.types import infer_dtype

infer_dtype(df.A)
'mixed-integer'

df.apply(lambda x: 'mixed' in infer_dtype(x))

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Sunday, 4. November 2018
Extract words from Marathi wikipedia

1) Download the polyglot pickled marathi model
wget bit.ly
mv 12FI1xV polyglot-mt.pkl

2) Extract all the words from the embedding

from polyglot.mapping import Embedding
embeddings=Embedding.load("polyglot-mt.pkl")
with open('myfile.txt', 'w') as fx:
for i in embeddings.vocabulary:
fx.write(i.encode('utf-8')+'\n')

3) Download the wordlist:
s3.amazonaws.com

... Link (0 comments) ... Comment


Monday, 10. September 2018
Google Input tools

Google suddenly stopped download of Input Tools package without giving any reason. And here is official response by Google:
We have been in touch with the Google Input Tools team and have confirmed that the Windows application is no longer available for download or installation. Instead, the team recommends you install the Google Input Tools Chrome extension as an alternative.

This is not expected from a company like google.

... Link (0 comments) ... Comment


Saturday, 18. August 2018
Python objects and methods

Here are important python objects and their methods
int mul, add, eq, ge, mod, pow
float .isinteger()
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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Wednesday, 8. August 2018
JSON to DF

Here is how to read a JSON file into pandas dataframe.

import json
import pandas as pd

with open('/tmp/aclImdb/movie_data/gv.json', 'r') as f:
data = json.load(f)

df=pd.DataFrame(data['data'])
df.to_excel('gov.xlsx')

... Link (0 comments) ... Comment


Saturday, 4. August 2018
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)
"""

... Link (0 comments) ... Comment


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Recent updates
python itertools module from itertools
import groupby s = 'abcccccbba' for w, v in groupby(s):...
by shantanuo (3/17/19 3:22 PM)
audio visual modules for Machine
Learning Here is the list of some of the modules...
by shantanuo (3/16/19 1:08 PM)
google module module for google
search !pip install google from googlesearch import search for url...
by shantanuo (1/8/19 10:38 AM)
Python date and time from
datetime import datetime date_string = "21 June, 2018" date_object =...
by shantanuo (12/26/18 12:14 PM)
Infer types in pandas This
will return the mixed datatypes but this can be slow....
by shantanuo (12/16/18 3:50 PM)
Extract words from Marathi wikipedia
1) Download the polyglot pickled marathi model wget http://bit.ly/12FI1xV mv...
by shantanuo (11/4/18 10:06 AM)
Google Input tools Google suddenly
stopped download of Input Tools package without giving any reason....
by shantanuo (9/10/18 7:44 AM)
Python objects and methods Here
are important python objects and their methods int __mul__, __add__,...
by shantanuo (8/18/18 3:11 PM)
JSON to DF Here is
how to read a JSON file into pandas dataframe. import...
by shantanuo (8/8/18 1:12 PM)
managing servers using python Fabric
is a high level Python library designed to execute shell...
by shantanuo (8/4/18 10:01 AM)
backup mysql users It is
easy to backup mysql users - wget percona.com/get/pt-show-grants; perl pt-show-grants
by shantanuo (5/20/18 3:42 PM)
About python 1 everything is
an object (class instances) 2 methods depends upon class of...
by shantanuo (5/20/18 2:52 PM)
mysql and shell command date
-d"-1 day ago" +'%b%d' equals to mysql -Bse"select date_format(date(date_add(now() ,...
by shantanuo (5/16/18 7:47 AM)
Preserving comments in Stored Procedure
You can write multi line comments in a stored procedure...
by shantanuo (5/12/18 12:56 PM)
Custom slack command Here are
5 steps to add any API to your slack channel....
by shantanuo (4/25/18 6:59 AM)
stack bookmarklet This bookmarklet will
help to quickly access stack pages linking to current page...
by shantanuo (1/10/18 10:47 AM)
Manage S3 like rsync ####
create bucket aws s3 mb s3://johntest123/ #### rsync all files...
by shantanuo (12/22/17 12:04 PM)
apache docker container issues If
apache docker container does not start then make these changes......
by shantanuo (11/10/17 3:00 PM)
Install aws client on centos
If pip is not installed, then the following command will...
by shantanuo (10/26/17 9:51 AM)
Managing Amazon keys Use this
command to convert private key to public key. ssh-keygen -y...
by shantanuo (10/9/17 7:04 AM)
percona utility We can re-create
mysql users using the percona utility. wget percona.com/get/pt-show-grants chmod 777...
by shantanuo (9/6/17 8:22 AM)
mail merge separate file per
record Microsoft Word has an excellent feature called Mail-Merge. If...
by shantanuo (7/6/17 12:09 PM)
find dead processes The 8th
column of ps aux command will list the status of...
by shantanuo (5/28/17 7:39 AM)
Amazon Web Services Here are
some of the important Amazon products to use. cloudTrail...
by shantanuo (5/10/17 11:35 AM)
Self signed security certificate http://www.thegeekstuff.com/2009/07/linux-apache-mod-ssl-generate-key-csr-crt-file/
openssl genrsa -out 34.195.94.88.key 1024 openssl req -new -key 34.195.94.88.key...
by shantanuo (1/16/17 8:02 AM)

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