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"""A very simple example to show what is required to get the excellent deform module from the Pylon's project to work with Flask.
DeForm is a Pylon's module capable of automatically creating HTML forms that conform to a schema of classes defined in Python through the Colander module. The transformation between Schema<-->Form data is handled by another module called Peppercorn. More information about how these three modules work together can be found at: http://docs.pylonsproject.org/projects/deform/en/latest/?awesome

Although DeForm is a Pylon's project, it can also operate as a stand-alone module. This Gist contains all the necessary changes to objects provided by Flask so that DeForm can serialize and deserialize data posted through a Flask.Request.

The basic thing that this gist is trying to demonstrate is how to derive from a Flask.Request object in order to change the data type of the Flask.Request.form object that stores the data posted by the client to the server. By default, Flask uses a MultiDict i

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Exporting a Networkx graph as a Cypher query

This little project defines a function that can be used to construct a Cypher query which when executed against a Neo4j database server will store the graph to the server.

Background

• A Graph is an abstract mathematical model composed of Nodes connected through Edges that can be used to describe complex systems composed of a set of parts (corresponding to nodes) and their connections (corresponding to edges).
• Examples of graphs are road networks (junctions connected via roads), electronic circuit networks (components and their connections) and others
• Networkx is an excellent Python module for manipulating such Graph objects of any kind.
• Neo4j is a graph database. It uses the Graph as a data model to store such objects to a data store.

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#Edge contraction as per http://en.wikipedia.org/wiki/Edge_contraction

def contract_edges(G,nodes, new_node, attr_dict=None, **attr):
    '''Contracts the edges of the nodes in the set "nodes" '''
    #Add the node with its attributes
    G.add_node(new_node, attr_dict, **attr)
    #Create the set of the edges that are to be contracted
    cntr_edge_set = G.edges(nodes, data = True)
    #Add edges from new_node to all target nodes in the set of edges that are to be contracted
    #Possibly also checking that edge attributes are preserved and not overwritten, 

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#@author:Athanasios Anastasiou
#@date: Wed Jul 29 10:44:08 2015
import networkx                         #Graph module
import pynq                             #LINQ for Python module
from matplotlib import pyplot as plt    #Fancy drawing stuff
import random                           #The standard oamdrn module
from collections import namedtuple      #A named tuple to make pynq think it's going over a collection of classes.

#SETUP THE SCHEMA
#Notice the notion of references back to the original schema inspired by the property graph model (https://github.com/tinkerpop/blueprints/wiki/Property-Graph-Model)

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'''Athanasios Anastasiou 13/12/2015
A simple function to get the "upper" and "lower" values envelope
from a time series'''

from numpy import array, sign, zeros
from scipy.interpolate import interp1d
from matplotlib.pyplot import plot,show,hold,grid, xlabel, ylabel, title, figure

def getEnvelopeModels(aTimeSeries, rejectCloserThan = 0):   
    '''Fits models to the upper and lower envelope peaks and troughs.

aanastasiou

'''Athanasios Anastasiou June 2017
Reads a bib file and exports the 'publications' entry to be attached to some jsonResume file'''
import pybtex.database
import sys
import json

def formatEntry(anEntry):
    '''Returns a dictionary with the required entries by the jsonresume schema'''
    pubTitle = anEntry.fields['journal'] if 'journal' in anEntry.fields.keys() else anEntry.fields['booktitle'] if 'booktitle' in anEntry.fields.keys() else "";
    return {"name":anEntry.fields['title'].replace("{","").replace("}","").replace("\&","\&"),

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1. Use GloVe to produce vector data

   • This will produce the vectors.txt and vectors.bin data

2. Use main.py to produce a new "vectors only" spacy model by using en_core_web_md as the base

3. Once this finishes, run spacy package inDir outDir with inDir, outDir set to ModelInputDir, WhateverOutputDir respectively.

   • This step will create a package that can be readily used by spacy.

4. From within WhateverOutputDir, execute pip install -e ./ to install the model as a module.

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import neomodel

class Item(neomodel.StructuredNode):
    __primarykey__ = "name"
    name = neomodel.StringProperty(unique_index=True)

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"""
This is a module that is supposed to be describing the whole datamodel of an application.

NOTE: The directory structure that is implied here is:

src/
    app_models/
        __init__.py (THIS FILE)
    main.py
"""

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Examples

Square

Freeform