PythonLabZalan

From XPUB & Lens-Based wiki

Terminal

Firstly I looked into basic command line functions File:Commands terminal.pdf and their operations for creating a solid base for Python3.

Optical character recognition + Tesseract

Secondarily I experimented in Terminal how to translate PDF or JPG to .txt files with tesseract and imagemagick (convert).

Optical character recognition

Input 1
Output 1

Tesseract (with languages you will be using)

  • Mac brew install tesseract --all-languages

imagemagick

  • Mac brew install imagemagick

How to use it?

tesseract - png - name of the txt file

tesseracttest SZAKACS$ tesseract namefile.png text2.txt

Getting 1 page from PDF file with PDFTK burst

pdftk yourfile.pdf burst

Or use imagemagick

convert -density 300 Typewriter\ Art\ -\ Riddell\ Alan.pdf Typewriter-%03d.tiff

Chose page you want to convert

Convert PDF to bit-map using imagemagick, with some options to optimize OCR

  • convert -density 300 page.pdf -depth 8 -strip -background white -alpha off ouput.tiff
  • -density 300 resolution 300DPI. Lower resolutions will create errors :)
  • -depth 8number of bits for color. 8bit depth == grey-scale
  • -strip -background white -alpha off removes alpha channel (opacity), and makes the background white
  • output.tiffin previous versions Tesseract only accepted images as tiffs, but currently more bitmap formats are accepted


Python3

Input 2
Output 2
NLTK Analysis outcome

To be able to understand how NLTK works I did an intensive python beginners learning week from 26.02. – 04.03.2018.

Find my tutorial script notes File:Terminal tutorials.pdf

Natural Language Tool Kit

For the NLTK text analysis I used one of pages of my reader. First NLTK Analysis in python3 (see below) to get different data from the textual input such as (see NLTK analysis outcome):

NLTK Analysis

  • Amount of words
  • The number of lowercase letters
  • The number of uppercase letters
  • 10 most common characters
  • 10 most common words
  • more than 15 character long words of the text
  • Amount of Verbs
  • Amount of Nouns
  • Amount of Adverbs
  • Amount of Pronouns
  • Amount of Adjectives
  • Amount of lines

NLTK Analysis Script 

import nltk

from nltk import word_tokenize

from nltk import FreqDist

from nltk.tokenize import sent_tokenize

from sys import stdin,stdout

import re

import sys, string

#importing nltk library word_tokenize

from collections import Counter

text = open ("readertest.txt")
content = text.read()

#importing and reading the content

#print(content)

words = content.split(" ")

#the string content needs to signifier - needs to be splitted to be able to read it, it detects if a new words begins based on the " "


splitting_statistic = sorted (set (words))

# the content is splitted

#print(splitting_statistic)


wordsamount_statistic = f'{len(words)} Amount of the words'

#amount of the words

print(wordsamount_statistic)


string=(content)
count1=0
count2=0
for i in string:
      if(i.islower()):
            count1=count1+1
      elif(i.isupper()):
            count2=count2+1
print("The number of lowercase characters is:")
print(count1)
print("The number of uppercase characters is:")
print(count2)

#counts the lowercase and uppercase letters in the text


fdist = FreqDist(content)

print("10 most common characters:")
print(fdist.most_common(10))

#print out the 10 most common letters


fdist = FreqDist(words)

print("10 most common words:")
print(fdist.most_common(10))

#print out the 10 most common words


#new_list = fdist.most_common()

#print(new_list)


#for word, _ in new_list:  #_ ignores the second variable, dictionary (key, value)
    #print(' ',_)
 
#prints a list of the most common words - how to make it better in one line



def vowel_or_consonants (c):
	if not c.isalpha():
		return 'Neither'
	vowels = 'aeiou'

	if c.lower() in vowels:
		return 'Vowel'

	else:
		return 'Consonant'

#for c in (content):

	#print(c, vowel_or_consonants(c))
   

#print(sent_tokenize(content))

#splitting text into sentences


#for word in (words):
	#print(word)

#control structure, each word in a seperate line


#fdist = FreqDist(words)

#print("hapaxes:")
#print(fdist.hapaxes())

#words that occur once only, the so-called hapaxes


V = set(words)
long_words = [w for w in V if len(w) > 15]

print("printing the more than 15 character long words of the text")
print(sorted(long_words))

#printing the more than 15 character long words of the text


tokenized_content = word_tokenize(content)

#the content is tokenized (nltk library)


statistic3 = nltk.pos_tag(tokenized_content)

#each word becomes a tag if is a verb, noun, adverb, pronoun, adjective)

#print(statistic3)


verbscounter = 0

verblist = []


for word, tag in statistic3:
	if tag in {'VB','VBD','VBG','VBN','VBP','VBZ'}:
		verbscounter = verbscounter + 1
		verblist.append(word)

verb_statistic = f'{verbscounter} Verbs'

# shows the amount of verbs in the text

print(verb_statistic)

print(verblist)

#creating a list from the verb counter



#creating a dictionary from a list



nouncounter = 0

nounlist = []

for word, tag in statistic3:
	if tag in {'NNP','NNS','NN', 'NNPS'}:
		nouncounter = nouncounter + 1 
		nounlist.append(word)

nouns_statistic = f'{nouncounter} Nouns'

#shows the amount of nouns in the text

print(nouns_statistic)

print(nounlist)


verblist2 = verblist

nounlist2 = nounlist

verb_noun_dictionary = {}

for i in range (len(verblist2)):
	verb_noun_dictionary[verblist2[i]] = nounlist2 [i]

verblist_and_nounlists = zip (verblist2, nounlist2)

verb_noun_dictionary = dict(verblist_and_nounlists)

verblist_and_nounlists = dict(zip(verblist2, nounlist2))

print(verblist_and_nounlists)

print(len(verblist))

characters = [words]

#print(words)


'''from itertools import groupby

def n_letter_dictionary(string):
    result = {}
    for key, group in groupby(sorted(string.split(), key = lambda x: len(x)), lambda x: len(x)):
        result[key] = list(group)
    return result

 print(n_letter_dictionary)'''


adverbscounter = 0

adverblist = []

for word, tag in statistic3:
	if tag in {'RB','RBR','RBS','WRB'}:
		adverbscounter = adverbscounter + 1
		adverblist.append(word)


adverb_statistic = f'{adverbscounter} Adverbs'

#shows the amount of adverbs in the text

print(adverb_statistic)
print(adverblist)


pronounscounter = 0
pronounslist = []

for word, tag in statistic3:
	if tag in {'PRP','PRP$'}:
		pronounscounter = pronounscounter + 1
		pronounslist.append(word)

pronoun_statistic = f'{pronounscounter} Pronouns'

#shows the amount of pronouns in the text

print(pronoun_statistic)

print(pronounslist)



adjectivscounter = 0

adjectivslist = []

for word, tag in statistic3:
	if tag in {'JJ','JJR','JJS'}:
		adjectivscounter = adjectivscounter + 1
		adjectivslist.append(word)

adjectiv_statistic = f'{adjectivscounter} Adjectives'

#shows the amount of adjectives in the text

print(adjectiv_statistic)
print(adjectivslist)

coordinating_conjuction_counter = 0

for word, tag in statistic3:
	if tag in {'CC'}:
		coordinating_conjuction_counter = coordinating_conjuction_counter + 1

coordinating_conjuction_statistic = f'{coordinating_conjuction_counter} Coordinating conjuctions'

#shows the amount of coordinating_conjuction in the text

print(coordinating_conjuction_statistic)


cardinal_number = 0

for word, tag in statistic3:
	if tag in {'CC'}:
		cardinal_number = cardinal_number + 1

cardinal_number_statistic = f'{cardinal_number} Cardinal numbers'

#shows the amount of cardinal_number in the text

print(cardinal_number_statistic)


determiner_counter = 0

for word, tag in statistic3:
	if tag in {'D'}:
		determiner_counter = determiner_counter + 1

determiner_statistic = f'{determiner_counter} Determiners'

#shows the amount of Determiners in the text

print(determiner_statistic)


existential_there_counter = 0

for word, tag in statistic3:
	if tag in {'EX'}:
		existential_there_counter = existential_there_counter + 1

existential_there_statistic = f'{existential_there_counter} Existential there'

#shows the amount of Existential there in the text

print(existential_there_statistic)



foreing_words_counter = 0

for word, tag in statistic3:
	if tag in {'FW'}:
		foreing_words_counter = foreing_words_counter + 1

foreing_words_statistic = f'{foreing_words_counter} Foreing words'

#shows the amount of foreing words in the text

print(foreing_words_statistic)


preposition_or_subordinating_conjunctionlist = []

preposition_or_subordinating_conjunction_counter = 0

for word, tag in statistic3:
	if tag in {'IN'}:
		preposition_or_subordinating_conjunction_counter = preposition_or_subordinating_conjunction_counter + 1
		preposition_or_subordinating_conjunctionlist.append(word)
preposition_or_subordinating_conjunction_statistic = f'{preposition_or_subordinating_conjunction_counter} Preposition or subordinating conjunctions'

#shows the amount of preposition_or_subordinating_conjunction in the text

print(preposition_or_subordinating_conjunction_statistic)

print(preposition_or_subordinating_conjunctionlist)



list_item_marker_counter = 0

for word, tag in statistic3:
	if tag in {'LS'}:
		list_item_marker_counter = list_item_marker_counter + 1

list_item_marker_statistic = f'{list_item_marker_counter} List item markers'

#shows the amount of list item markers in the text

print(list_item_marker_statistic )


modals_counter = 0

for word, tag in statistic3:
	if tag in {'LS'}:
		modals_counter = modals_counter + 1

modals_statistic = f'{modals_counter} Modals'

#shows the amount of modals in the text

print(modals_statistic)


Predeterminer_counter = 0

for word, tag in statistic3:
	if tag in {'PDT'}:
		Predeterminer_counter = Predeterminer_counter  + 1

Predeterminer_statistic = f'{Predeterminer_counter } Predeterminers'

#shows the amount of Predeterminers in the text

print(Predeterminer_statistic)


Possessive_ending_counter = 0

for word, tag in statistic3:
	if tag in {'PDT'}:
		Possessive_ending_counter = Possessive_ending_counter + 1

Possessive_ending_statistic = f'{Possessive_ending_counter} Possessive endings'

#shows the amount of Possessive endings in the text

print(Possessive_ending_statistic)


particle_counter = 0

for word, tag in statistic3:
	if tag in {'RP'}:
		Particle_counter = particle_counter + 1

particle_statistic = f'{particle_counter} Particles'

#shows the amount of Particles endings in the text

print(particle_statistic)


symbol_counter = 0

for word, tag in statistic3:
	if tag in {'SYM'}:
		symbol_counter = symbol_counter + 1

symbol_statistic = f'{symbol_counter} Symbols'

#shows the amount of symbols in the text

print(symbol_statistic)


to_counter = 0

for word, tag in statistic3:
	if tag in {'TO'}:
		to_counter = to_counter + 1

to_statistic = f'{to_counter} to'

#shows the amount of to in the text

print(to_statistic)


interjection_counter = 0

for word, tag in statistic3:
	if tag in {'TO'}:
		interjection_counter = interjection_counter + 1

interjection_statistic = f'{interjection_counter} Interjections'

#shows the amount of interjections in the text

print(interjection_statistic)


Wh_determiner_counter = 0

for word, tag in statistic3:
	if tag in {'TO'}:
		Wh_determiner_counter = Wh_determiner_counter + 1

Wh_determiner_statistic = f'{Wh_determiner_counter} Wh determiners'

#shows the amount of Wh determiners in the text

print(Wh_determiner_statistic)


Wh_pronoun_counter = 0

for word, tag in statistic3:
	if tag in {'TO'}:
		Wh_pronoun_counter = Wh_pronoun_counter + 1

Wh_pronoun_statistic = f'{Wh_pronoun_counter} Wh pronouns'

#shows the amount of Wh pronouns in the text

print(Wh_pronoun_statistic)


Possessive_wh_pronoun_counter = 0

for word, tag in statistic3:
	if tag in {'TO'}:
		Possessive_wh_pronoun_counter  = Possessive_wh_pronoun_counter  + 1

Possessive_wh_pronoun_statistic = f'{Possessive_wh_pronoun_counter} Possessive wh pronouns'

#shows the amount of Possessive wh pronouns in the text

print(Possessive_wh_pronoun_statistic)

dic1 =([len (i) for i in verblist])
print(dic1)

dic2=([len (i) for i in nounlist])
print(dic2)

dic3=([len (i) for i in adjectivslist])
print(dic3)

dic4=([len (i) for i in preposition_or_subordinating_conjunctionlist])
print(dic4)
#print([len (i) for i in verblist_and_nounlists])
#print([len (i) for i in words])



double_numbers1 = []
for n in dic1:
	double_numbers1.append(n*100)
print(double_numbers1)

double_numbers2 = []
for n in dic2:
	double_numbers2.append(n*100)
print(double_numbers2)

double_numbers3 = []
for n in dic3:
	double_numbers3.append(n*100)
print(double_numbers3)

double_numbers4 = []
for n in dic4:
	double_numbers4.append(n*100)
print(double_numbers4)

div_numbers1= []
for n in dic1:
	div_numbers1.append(n/100)
print(div_numbers1)

div_numbers2= []
for n in dic2:
	div_numbers2.append(n/100)
print(div_numbers2)

div_numbers3= []
for n in dic3:
	div_numbers3.append(n/100)
print(div_numbers3)

div_numbers4= []
for n in dic4:
	div_numbers4.append(n/100)
print(div_numbers4)


'''lst1 = [[double_numbers1], [double_numbers2], [double_numbers3], [double_numbers4]]
print((zip(*lst1))[0])'''

'''lst1 = [[double_numbers1], [double_numbers2], [double_numbers3], [double_numbers4]]
lst2 = []
lst2.append([x[0]for x in lst1])
print(lst2 [0])'''

'''lst1 = [[double_numbers1], [double_numbers2], [double_numbers3], [double_numbers4]]
outputlist = []
for values in lst1:
	outputlist.append(values[-1])
print(outputlist)'''


n1 = double_numbers1
n1_a = (n1[0])
print(n1_a)

n2 = double_numbers2
#print(n2[0])

n3 = double_numbers3
#print(n3[0])

n4 = double_numbers4
#print(n4[0])

n5 = double_numbers1
#print(n5[1])

n6 = double_numbers2
#print(n6[1])

n7 = double_numbers3
#print(n7[1])

n8 = double_numbers3
#print(n8[1])

print((n1[0], n2[0]), (n3[0], n4[0]), (n5[1], n6[1]), (n7[1], n8[1]))

n1a = div_numbers1
#print(n1a[0])

n2a = div_numbers2
#print(n2a[0])

n3a = div_numbers3
#print(n3a[0])

n4a = div_numbers4
#print(n4a[0])

print(n1a[0], n2a[0], n3a[0], n4a[0])

text_file = open ("Output.txt", "w")

text_file.write(n1_a)
text_file.close()




wordsnumber_statistic = len(content.split()) 

#number of words

#print(wordsnumber_statistic)


numberoflines_statistic = len(content.splitlines()) 

#number of lines

print("Number of lines:")
print(numberoflines_statistic)


numberofcharacters_statistic = len(content) 

#number of characters

print("Number of characters:")
print(numberofcharacters_statistic)


d ={}

for word in words:
	d[word] = d.get(word, 0) + 1 

#how many times a word accuers in the text, not sorted yet(next step)

#print(d)


word_freq =[]

for key, value in d.items():
	word_freq.append((value, key))

#sorted the word count - converting a dictionary into a list

#print(word_freq)


lettercounter = Counter(content)

#counts the letters in the text

#print(lettercounter)


Another Data Analysis Script with taking out the stop words 

from nltk.corpus import stopwords
from nltk.tokenize import word_tokenize
from nltk import FreqDist

import re, datetime

text = open ("output.txt")
content = text.read()

#print(content)

words = content.split(" ")

splitting_statistic = sorted (set (words))

#print(splitting_statistic)

example_sent = (words)

stop_words = set(stopwords.words ('english'))

#word_tokens = word_tokenize(example_sent)

filtered_sentence = [w for w in example_sent if not w in stop_words]

filtered_sentence = []

for w in example_sent:
	if w not in stop_words:
		filtered_sentence.append(w)

#print(example_sent)
#print(filtered_sentence)

fdist = FreqDist(words)
#print(fdist.most_common(100))


mylist = (words) #init the list

print('Your input file has year dates =' )

for l in mylist:
	match = re.match(r'.*([1-3][0-9]{3})', l)
	if match is not None:
		#then it found a match!
	
		print(match.group(1))




s = open('output.txt','r').read()  # Open the input file

# Program will count the characters in text file
num_chars = len(s)

# Program will count the lines in the text file
num_lines = s.count('\n')

# Program will call split with no arguments
words = s.split()
d = {}
for w in words:
    if w in d:
        d[w] += 1
    else:
        d[w] = 1

num_words = sum(d[w] for w in d)

lst = [(d[w],w) for w in d]
lst.sort()
lst.reverse()

# Program assumes user has downloaded an imported stopwords from NLTK
from nltk.corpus import stopwords # Import the stop word list
from nltk.tokenize import wordpunct_tokenize

stop_words = set(stopwords.words('english')) # creating a set makes the searching faster
print ([word for word in lst if word not in stop_words])

# Program will print the results
print('Your input file has characters = '+str(num_chars))
print('Your input file has lines = '+str(num_lines))
print('Your input file has the following words = '+str(num_words))

print('\n The 100 most frequent words are /n')

i = 1
for count, word in lst[:100]:
    print('%2s. %4s %s' %(i,count,word))
    i+= 1

from nltk.corpus import stopwords
from nltk.tokenize import word_tokenize
 
example_sent = (content)
 
stop_words = set(stopwords.words('english'))
 
word_tokens = word_tokenize(example_sent)
 
filtered_sentence = [w for w in word_tokens if not w in stop_words]
 
filtered_sentence = []
 
for w in word_tokens:
    if w not in stop_words:
        filtered_sentence.append(w)
 
#print(word_tokens)
#print(filtered_sentence)

fdist = FreqDist(filtered_sentence)
#print(fdist.most_common(100))

import nltk 
with open('output.txt', 'r') as f:
    sample = f.read()


sentences = nltk.sent_tokenize(sample)
tokenized_sentences = [nltk.word_tokenize(sentence) for sentence in sentences]
tagged_sentences = [nltk.pos_tag(sentence) for sentence in tokenized_sentences]
chunked_sentences = nltk.ne_chunk_sents(tagged_sentences, binary=True)

def extract_entity_names(t):
    entity_names = []

    if hasattr(t, 'label') and t.label:
        if t.label() == 'NE':
            entity_names.append(' '.join([child[0] for child in t]))
        else:
            for child in t:
                entity_names.extend(extract_entity_names(child))

    return entity_names

entity_names = []
for tree in chunked_sentences:
    # Print results per sentence
    # print extract_entity_names(tree)

    entity_names.extend(extract_entity_names(tree))

# Print all entity names
print(entity_names)

# Print unique entity names
#print (set(entity_names))

dic1 =([len (i) for i in entity_names])
print(dic1)

double_numbers1 = []
for n in dic1:
	double_numbers1.append(n*100)
print(double_numbers1)

div_numbers1= []
for n in dic1:
	div_numbers1.append(n/100)
print(div_numbers1)

list(zip(*(iter([double_numbers1]),)*3))

#group = lambda t, n: zip(*[t[i::n] for i in range(n)])
#group([1, 2, 3, 4], 2)

#print(group)

input = [double_numbers1]

[input[i:i+n] for i in range(0, len(input), n)]

DrawBot

DrawBot experiment 1
DrawBot experiment 2
DrawBot experiment 3
DrawBot experiment generated through random Data input from Python3

To be able to generate geometric shapes based on the analysis of the textual content I needed to connect Python3 to the drawing software DrawBot, which works on python script.


Rotative Shape Gif in DrawBot

Based on the tutorial from Jost van Rossum 

CANVAS = 500
SQUARESIZE = 158
NSQUARES = 50
SQUAREDIST = 6

width = NSQUARES * SQUAREDIST

NFRAMES = 50

for frame in range(NFRAMES):
    newPage(CANVAS, CANVAS)
    frameDuration(1/20)
    
    fill(0, 0, 1, 1)
    rect(0, 0, CANVAS, CANVAS)

    phase = 2 * pi * frame / NFRAMES  # angle in radians
    startAngle = 90 * sin(phase)
    endAngle = 90 * sin(phase + 20 *pi)

    translate(CANVAS/2 - width / 2, CANVAS/2)

    fill(1, 0, 0.5, 0.1)
    

    for i in range(NSQUARES + 1):
        f = i / NSQUARES
        save()
        translate(i * SQUAREDIST, 0)
        scale(0.7, 1)
        rotate(startAngle + f * (endAngle - startAngle))
        rect(-SQUARESIZE/2, -SQUARESIZE/2, SQUARESIZE, SQUARESIZE)
        restore()
        
#saveImage("StackOfSquares7.gif")

Geometry generated based on random data input from Python 

import json
from random import randint, random

data=[]

for i in range(100):
	x=randint(0, 1000)
	y=randint(0, 1000)
	w=randint(0, 1000)
	h=randint(0, 1000)
	r=random()
	g=random()
	b=random()
	a=random()
	data.append( (x,y,w,h,r,g,b,a) )

print (json.dumps(data, indent=2))

Random data import with json in DrawBot 

import json
data = json.load(open("rdata.json"))
# print (data)

for x,y,w,h r, g, b, a in data:
    print(x,y)
    fill(r, g, b, max(a, 05))
    rect(x, y, w, h)
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