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Records in python- small wrapper around namedtuple 12 Years Ago by hughesadam_87 …it. In [1]: from collections import namedtuple In [2]: Person=namedtuple('Person', 'name, age, height') In…dictionaries in a similar manner as an ordinary namedtuple. In [26]: bill=personmanager._make('Billy',… me demonstrate this first by accessing the standard namedtuple directly: In [43]: d={'name':'Larry',… Helped with type declaration in named tuple 12 Years Ago by hughesadam_87 … handle my custom data type: fields=['Query', 'u1', 'Accession] Old = namedtuple('Old', fields, verbose=False) class New(Old): def __repr__(self… Custom named tuples for record storage 12 Years Ago by hughesadam_87 … in a regular, lightweight type (In this case a mutable namedtuple) The data is managed by a custom dictionary object. The…; and can be used as if it were an official NamedTuple object. Lines 8-137 are this source code, and in… Re: Custom named tuples for record storage 12 Years Ago by hughesadam_87 … think my best bet would be to make a true namedtuple subclass which typechecks the datafields, passed in the same way… can use the class above as a standin. Unfortunately, collections.namedtuple isn't a subclass; rather, is a factory function so… Understanding ROC Curves From Scratch. 5 Years Ago by jeffmylife … confusion matrix with the standard library's collections.namedtuple: import collections ConfusionMatrix = collections.namedtuple('conf', ['tp','fp','tn','fn']) To calculate the… Re: Custom named tuples for record storage 12 Years Ago by hughesadam_87 … nametuple class has a _make method that will return a namedtuple when one passes in an interable. @classmethod def _make(cls… Re: Custom named tuples for record storage 12 Years Ago by TrustyTony Also the test I mentioned is changed in namedtuple in collections: if not all(c.isalnum() or c=='_' for c in name): This is basically same as I suggested. I think you should not call your class tupple as it is mutable and does not inherit from tuple. Re: Custom named tuples for record storage 12 Years Ago by hughesadam_87 Actually, I think I've come up with the best solution for this... I wrote a wrapper function to return a namedtuple with option defaults and recasting. I would like to post it as a separate code snippet; it is different enough from this one I think to warrant it. Do you mind? Triangle and Point class for Project Euler 14 Years Ago by TrustyTony … read carefully Python documentation, the source of Point object by namedtuple should be clear. It is worth to notice the point… Python errors 10 Years Ago by abaddon2031 … ImportError: import xml.etree.ElementTree as ET from collections import namedtuple parser = argparse.ArgumentParser(description='Process today\'s FACTS orders and… Python CPU Performance Analysis 10 Years Ago by cjohnweb ….015 0.008 0.020 0.010 collections.py:287(namedtuple) 1 0.000 0.000 0.000 0.000 __init__… Re: how do I make a class instance act as a class?? 10 Years Ago by Gribouillis … a function which returns a class, as `namedtuple()` returns a new subclass of tuple. Namedtuple's arguments are the name of the…;"Return a new type. Could be a subtype of namedtuple(name, fields) Add class members: _field_types: a dictionary field name… Re: Create a Python Dictionary From a CSV File using CSV Module 14 Years Ago by TrustyTony … my mind. I have not used in my own code namedtuple, so thought it good opportunity to learn how to put… source code[/I]: the code for namedtuple is fine example how expressive Python is. My namedtuple version looks like candidate for code… Re: Create a Python Dictionary From a CSV File using CSV Module 14 Years Ago by Beat_Slayer … my mind. I have not used in my own code namedtuple, so thought it good opportunity to learn how to put… source code[/I]: the code for namedtuple is fine example how expressive Python is. My namedtuple version looks like candidate for code… Re: storing values with button 13 Years Ago by TrustyTony Sorry the definition of Girl as [URL="http://www.doughellmann.com/PyMOTW/collections/namedtuple.html"]namedtuple [/URL]should have been: [CODE]>>> Girl = namedtuple('Girl', 'name beauty body')[/CODE] at second line. And the code is interactive prompt log on sorting the girls by ranking function score. Re: error message inside for loop 13 Years Ago by Gribouillis …adapted datatypes like this [code=python] from collections import namedtuple from itertools import islice import re import sys file1 … Define a custom datatype to read file1 class LineA(namedtuple("LineA", "file R plp trace …in F1: print line.bgc, line.bgd LineB = namedtuple("LineB", "foo bar R baz")… Re: Class Implements a Structure/Record (Python) 13 Years Ago by ~s.o.s~ @niff I agree namedtuple isn't the universal solution, but it's part of … of members you can have.[code] >>> Person = namedtuple('Person', 'name age hobbies') >>> p1 = Person('Tom… you can see, the only problem folks might have with namedtuple is that it's immutable i.e. fields can only… Re: choose the best "container" 12 Years Ago by Gribouillis … a simple container from collections import namedtuple FileInfo = namedtuple("FileInfo", "path foo bar baz") mylist=[] … Re: classes: instance reference 16 Years Ago by paddy3118 …: [CODE=python]>>> from collections import namedtuple >>> Data = namedtuple('Data', 'value, weight') >>> data = {} >… Re: struct 15 Years Ago by drjay1627 … research last night and I found this: from collections import namedtuple namedtuple("MyClass", "foo bar") MyClass(foo=1… Re: Create a Python Dictionary From a CSV File using CSV Module 14 Years Ago by TrustyTony … not really needed for simple cases. [CODE]from collections import namedtuple filein = open("sample.dat") datadict={} headerline = [f.strip…() for f in filein.readline().split(',')] print headerline Dataline=namedtuple('Dataline',headerline) for data in filein: data=[f.strip() for… Re: Split string and write to new file 14 Years Ago by TrustyTony … __future__ import print_function ## Python 3 style printing from collections import namedtuple import string filein = open("cb2.txt") quotes = '\'\"…(string.whitespace + quotes) for field in headerline.split(separator)] Dataline = namedtuple('Dataline',headerline) print ('Fields are:',Dataline._fields,'\n') for data… Re: How to store a set of cooordinates 14 Years Ago by TrustyTony [QUOTE=ultimatebuster;1462430]create coordinate class :P[/QUOTE] Like : [CODE]from collections import namedtuple Coordinates = namedtuple('Coordinates','x y') c1 = Coordinates(23,34) print(c1)[/CODE] Re: storing values with button 13 Years Ago by TrustyTony [CODE]>>> from collections import namedtuple >>> Girl = namedtuple(Girl, 'name beauty body') >>> girls = (Girl('Jill… Re: Parsing a text file 13 Years Ago by TrustyTony … __future__ import print_function ## Python 3 style printing from collections import namedtuple import string filein = open("sample.dat") datadict = {} for…) headerline = [field.strip() for field in headerline.split(separator)] Dataline = namedtuple('Dataline',headerline) print ('Fields are:',Dataline._fields,'\n') for data… Re: Generic Non Recursive Tree Traversal 13 Years Ago by Gribouillis …;"" from __future__ import print_function from collections import deque, namedtuple # IMPORTANT NOTE: this module needs the class ConstSequence # from http…;:")[0] setattr(_cs, _name, 1 << _i) _NamedEvent = namedtuple("_NamedEvent", "name value") def _event_items(): yield… Re: Class Implements a Structure/Record (Python) 13 Years Ago by niff … so sure it is such a good bargain to use namedtuple because you're limited to... a tuple. For example, I… into the defined lists. It would be less easy with namedtuple as it is limited to only 2 members; although I… Re: Class Implements a Structure/Record (Python) 13 Years Ago by TrustyTony … about: [CODE]>>> from collections import namedtuple >>> Storage = namedtuple('Storage', 'db, schemas, tables, columns, funs') >>… Re: floating point arithmatic, WTF am I doing wrong? 12 Years Ago by Gribouillis …) # License: Public Domain # Use this code freely. from collections import namedtuple from math import isnan import struct import sys if sys… anyfloat requires python 2.7 or newer.") class anyfloat(namedtuple("anyfloat", "sign log2 mantissa")): ""… Re: Instance methods or general methods? 12 Years Ago by TrustyTony get_width is so so. Here some experiments: from collections import namedtuple class Test(object): def __init__(self, **mydict): self.mydict = mydict …('%s = %s' % v for v in self.mydict.items()) Info = namedtuple("Info", "height, width, length") my_data = Test…