snippyts 0.3.1

Miscellaneous utility scripts and Python objects for agile development.

snippyts

Miscellaneous utility scripts and Python objects for agile development.

1. Table of objects
2. Change log
3. Instructions for running tests

Table of objects

No.	Name	Description	Date added	Date reviewed
1	snippyts. __init__. batched	Partitions an input collection iterable into chunks of size batch_size. The number of chunks is unknown at the time of calling is determined by the length of iterable.	2024 Sep 22	2024 Sep 22
2	snippyts. __init__. flatten	Given a collection of lists, concatenates all elements into a single list. More formally, given a collection holding n iterables with m elements each, this function will return a single list holding all n * m elements.	2024 Sep 22	2024 Sep 22
3	create_python_ simple_package.sh	BASH script to initialize a local Python package as a local git repository with a virtual environment, project files, and standard folder structure. It takes user input into account for parameterization from the command line.	2024 Sep 22	2024 Sep 23
4	snippyts. __init__. to_txt	Function that expects two string parameters as arguments and writes the first string as the content of a file at the location denoted by the second string (which is assumed to denote a POSIX path).	2024 Sep 23	2024 Sep 23
5	snippyts. __init__. from_txt	Function that can be directed to a local raw text file by its POSIX path and returns the content of that file as a string.	2024 Sep 23	2024 Sep 23
6	snippyts. __init__. to_json	Function that expects two parameters as arguments, a Python dictionary and a string, and writes the former as the content of a file at the location denoted by the latter (which is assumed to denote a POSIX path).	2024 Sep 24	2024 Sep 24
7	snippyts. __init__. from_json	Function that can be directed to a local JSON file by its POSIX path and returns the content of that file as a Python dictionary.	2024 Sep 24	2024 Sep 24
8	snippyts. __init__. to_pickle	Function that can be directed to a local raw text file by its POSIX path and returns the content of that file as a Python dictionary.	2024 Oct 03	2024 Oct 03
9	snippyts. __init__. from_pickle	Function that can be directed to a local Python-pickle file by its POSIX path and returns a copy of the artifact persisted in that file.	2024 Oct 03	2024 Oct 03
10	snippyts.trie.Trie	A class implementing a trie data structure.	2024 Oct 03	2025 Aug 27
11	snippyts. vocabulary_tools. ExactStringMatcher	A wrapper around flashtext2 providing a unified application interface shared with FuzzySet.	2024 Oct 12	2024 Oct 26
12	snippyts. vocabulary_tools. FuzzyStringMatcher	A wrapper around FuzzySet providing a unified application interface shared with flashtext2.	2024 Oct 13	2024 Oct 26
13	snippyts. __init__. to_csv	Function that expects two parameters as arguments, a list of lists (or, more geneally, an Iterable contaning other Iterables which is expected to represent a CSV-structured matrix) and a string, and writes the former as the content of a file at the location denoted by the latter (which is assumed to denote a POSIX path).	2024 Oct 26	2024 Oct 26
14	snippyts. __init__. from_csv	Function that can be directed to a local CSV file by its POSIX path and returns the content of that file as a list of lists (or, more geneally, an Iterable contaning other Iterables which is expected to represent a CSV-structured matrix).	2024 Oct 26	2024 Oct 26
15	snippyts. __init__. tryline	Wraps a try-raise block into a single statement. It is intended to flatten try-catch. It attempts to call the specified Python-callable object with the provided arguments and keyword arguments. If the call is successful, it silently returns the output of the call. If it fails, it raises an exception of the type provided as the second argument.	2025 Feb 28	2025 Feb 28
16	snippyts. __init__. is_url	Determines whether a given string is a valid URL. It uses urllib.parse.urlparse, a function that splits a URL into six components: scheme, network location, path, parameters, query, and fragment.	2025 Feb 28	2025 Feb 28
18	snippyts. preprocessing. KBinsEncoder	Discretizes the data into n_bins using scikit-learn's KBinsDiscretizer class, and then replaces every input value with the value at the bin-th quantile, ensuring that the output vector - only has n_bins unique element but - has the same dimensionality as the original input vector.	2025 Feb 28	2025 Aug 23
19	snippyts. __init__. to_yaml	Works like to_txt but writes out YAML-formatted data.	2025 Jul 27	2025 Jul 27
20	snippyts. __init__. cp	Shorthand for copy.deepcopy.	2025 Jul 27	2025 Jul 27
21	snippyts. __init__. from_yaml	Works like from_yaml but reads in YAML-formatted data into a Python dictionary object.	2025 Jul 27	2025 Jul 27
22	snippyts. __init__. defolder	Function that takes a path string as an argument. If a folder at that path does not exist yet, it gets created. It then returns the real path of the folder, resolving any symbolic links in the path if they exist. File names are implicitly parsed for their containing folder names; the folder name is handled as per the specifications but the final path returned by the function will include again the file name.	2025 Jul 27	2025 Jul 27
23	snippyts. metrics. average_token_similarity	Given two strings, it greedily and fuzzily aligns their tokens by similarity and returns the similarity ratio for the full sequence averaged over all tokens.	2025 Jul 28	2025 Jul 28
24	snippyts. __init__. UnsupportedInputShapeError	Self-explanatory exception.	2025 AUG 1	2025 AUG 1
25	snippyts. __init__. smart_cast_number	Cast a numeric value to an integer if it is numerically whole; otherwise, return as float.	2025 AUG 1	2025 AUG 1
26	snippyts. __init__. is_number	Function that checks whether a string can be interpreted as a integer or a float.	2025 AUG 1	2025 AUG 1
27	snippyts. __init__. read_arg	Function that reads command line arguments passed to a python script, then returns the corresponding value of the specified argument's name.	2025 JUL 27	2025 JUL 27
28	snippyts. __init__. read_args	Function that reads all named command line arguments passed to a Python script (names are those starting with - or --), then saves their corresponding values into a namedtuple. The argument names are converted into valid attribute names by stripping leading hyphens and replacing non-alpha-numeric characters with underscores.	2025 JUL 27	2025 JUL 27

Deprecated

No.	Name	Description	Date added	Date removed
17	snippyts. __init__. gtml	Removed due to authentication issues. Nowadays, most websites seem to be rejecting connections with the kind of parameterization used in this function. Gets the HTML content of the document at the specified location URL. Named gtml as a shorthand for "get HTML".	2025 Feb 28	2025 Nov 22

Change log

2025 NOV

Networking

1. Removed gtml function for scraping as most sites tend to block it and ends up not working unless more advanced authentication is implemented.

2025 AUG

NLP & ML

1. Fixes snippyts.trie.Trie.
2. Fixes snippyts.preprocessing.KBinsEncoder.
3. Adds snippyts.metrics.average_token_similarity, a function for calculating the average token similarity between two strings.

I/O Functions

3. Adds snippyts.__init__.to_yaml, a function for writing out YAML-formatted data.
4. Adds snippyts.__init__.from_yaml, a function that reads in YAML-formatted data into a Python dictionary.
5. Adds snippyts.__init__.read_arg, a function that returns the value of a specified command-line parameter name (names are those starting with - or --).
6. Adds snippyts.__init__.read_args, like read_arg but for applies implicitly to all parameters and returns their arguments as values in a namedtuple, with the parameter name as the attributes.

System & Language

2. Adds snippyts.__init__.cp, a shorthand for copy.deepcopy.
3. Adds snippyts.__init__.smart_cast_number, a function for casting a numeric value to an integer if it is numerically whole; otherwise, return as float.
4. Adds snippyts.__init__.is_number, a function that checks whether a string can be interpreted as a integer or a float.
5. Adds snippyts.__init__.defolder, a function that handles path strings and creates folders if they do not exist yet.
6. Adds snippyts.__init__.UnsupportedInputShapeError, an exception for handling unsupported input shapes.

Running tests

Using pytest

Change into the project's home folder (first line below) and run pytest (second line). After moving into that directory, the working folder should contain two subfolders, src (in turn the parent of subfolder snippyts) and tests:

cd snippyts ;
pytest tests ;

Running the module as a package

cd snippyts ;
python -m src.snippyts.__init__ ;
python -m src.snippyts.preprocessing ;