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n-ensemble

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The dataset generation failed because of a cast error
Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 7 new columns ({'explanation', 'language', 'category', 'code', 'difficulty', 'id', 'tags'}) and 5 missing columns ({'Language', 'Description', 'ID', 'Code Snippet', 'Complexity'}).

This happened while the csv dataset builder was generating data using

hf://datasets/nova-ai-labs/n-ensemble/coding_dataset.csv (at revision ea204f500d7a7ef76c7815984251faf86b26fae7)

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1871, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 643, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2293, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2241, in cast_table_to_schema
                  raise CastError(
              datasets.table.CastError: Couldn't cast
              id: int64
              language: string
              category: string
              difficulty: string
              code: string
              explanation: string
              tags: string
              -- schema metadata --
              pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 1053
              to
              {'ID': Value(dtype='int64', id=None), 'Language': Value(dtype='string', id=None), 'Code Snippet': Value(dtype='string', id=None), 'Description': Value(dtype='string', id=None), 'Complexity': Value(dtype='string', id=None)}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1433, in compute_config_parquet_and_info_response
                  parquet_operations = convert_to_parquet(builder)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1050, in convert_to_parquet
                  builder.download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 925, in download_and_prepare
                  self._download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1001, in _download_and_prepare
                  self._prepare_split(split_generator, **prepare_split_kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1742, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1873, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 7 new columns ({'explanation', 'language', 'category', 'code', 'difficulty', 'id', 'tags'}) and 5 missing columns ({'Language', 'Description', 'ID', 'Code Snippet', 'Complexity'}).
              
              This happened while the csv dataset builder was generating data using
              
              hf://datasets/nova-ai-labs/n-ensemble/coding_dataset.csv (at revision ea204f500d7a7ef76c7815984251faf86b26fae7)
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

ID
int64
Language
string
Code Snippet
string
Description
string
Complexity
string
1
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Medium
2
JavaScript
function add(a, b) { return a + b; }
Defines a function that adds two numbers.
Hard
3
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Medium
4
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Hard
5
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Hard
6
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Hard
7
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Hard
8
Ruby
def add(a, b); a + b; end
Defines a method that adds two numbers.
Hard
9
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Easy
10
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Easy
11
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Easy
12
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Hard
13
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Medium
14
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Hard
15
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
16
Python
print('Hello, World!')
Prints 'Hello, World!' to the console.
Hard
17
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Medium
18
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Hard
19
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Hard
20
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Medium
21
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Hard
22
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Easy
23
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
24
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Medium
25
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Hard
26
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Hard
27
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
28
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Hard
29
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Easy
30
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Easy
31
Ruby
def add(a, b); a + b; end
Defines a method that adds two numbers.
Hard
32
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Easy
33
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Hard
34
C++
std::cout << 'Hello, World!';
Prints 'Hello, World!' to the console.
Medium
35
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Easy
36
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
37
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Easy
38
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Easy
39
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Hard
40
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Hard
41
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Hard
42
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Easy
43
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Easy
44
Python
print('Hello, World!')
Prints 'Hello, World!' to the console.
Easy
45
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Easy
46
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Easy
47
Ruby
def add(a, b); a + b; end
Defines a method that adds two numbers.
Hard
48
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Medium
49
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Hard
50
C++
std::cout << 'Hello, World!';
Prints 'Hello, World!' to the console.
Medium
51
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Hard
52
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
53
C++
std::cout << 'Hello, World!';
Prints 'Hello, World!' to the console.
Medium
54
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Easy
55
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Medium
56
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Hard
57
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Hard
58
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Medium
59
Python
print('Hello, World!')
Prints 'Hello, World!' to the console.
Easy
60
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Easy
61
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Hard
62
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Easy
63
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
64
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Hard
65
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Hard
66
C++
std::cout << 'Hello, World!';
Prints 'Hello, World!' to the console.
Easy
67
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Hard
68
Ruby
def add(a, b); a + b; end
Defines a method that adds two numbers.
Medium
69
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Medium
70
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Medium
71
JavaScript
function add(a, b) { return a + b; }
Defines a function that adds two numbers.
Medium
72
C++
std::cout << 'Hello, World!';
Prints 'Hello, World!' to the console.
Hard
73
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Easy
74
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Hard
75
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Medium
76
JavaScript
function add(a, b) { return a + b; }
Defines a function that adds two numbers.
Medium
77
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Medium
78
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Easy
79
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
80
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Easy
81
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Medium
82
JavaScript
console.log('Hello, World!');
Prints 'Hello, World!' to the console.
Medium
83
Python
for i in range(5): print(i)
Prints numbers from 0 to 4.
Medium
84
Java
System.out.println('Hello, World!');
Prints 'Hello, World!' to the console.
Easy
85
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Medium
86
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Hard
87
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Hard
88
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Medium
89
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Hard
90
Python
def add(a, b): return a + b
Defines a function that adds two numbers.
Medium
91
Ruby
puts 'Hello, World!'
Prints 'Hello, World!' to the console.
Easy
92
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Medium
93
Java
public int add(int a, int b) { return a + b; }
Defines a method that adds two numbers.
Hard
94
JavaScript
for (let i = 0; i < 5; i++) { console.log(i); }
Prints numbers from 0 to 4.
Hard
95
Python
print('Hello, World!')
Prints 'Hello, World!' to the console.
Hard
96
C++
int add(int a, int b) { return a + b; }
Defines a function that adds two numbers.
Medium
97
Ruby
def add(a, b); a + b; end
Defines a method that adds two numbers.
Medium
98
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Medium
99
Ruby
5.times { |i| puts i }
Prints numbers from 0 to 4.
Medium
100
Java
for (int i = 0; i < 5; i++) { System.out.println(i); }
Prints numbers from 0 to 4.
Medium
End of preview.

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Check out the documentation for more information.

Nessembele

A small coding dataset for practice and learning.

Quick Start 

from datasets import load_dataset

dataset = load_dataset("novastudio/nessembele")
df = dataset["train"].to_pandas()
print(df.head())

What's Inside

  • File: coding_dataset.csv
  • Format: CSV with headers
  • Size: Small and beginner-friendly
  • Purpose: Coding practice and data analysis

Usage

Load with Pandas 

import pandas as pd
df = pd.read_csv("hf://datasets/novastudio/nessembele/coding_dataset.csv")

GPU Acceleration (Optional) 

import cudf  # NVIDIA RAPIDS
df = cudf.read_csv("hf://datasets/novastudio/nessembele/coding_dataset.csv")

Practice Ideas

  • Data exploration and cleaning
  • Basic statistics and visualization
  • Simple machine learning models
  • Algorithm testing

License

MIT - Free to use for any purpose.

Made by NovaStudio
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