title: "List Files" author: "Rj" date: 2019-04-20 description: "-" type: technical_note draft: false
from os import listdir
from os.path import isfile, join
def list_files(mypath):
onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]
for x in onlyfiles:
print(x)
list_files('/tmp/datasets')
credit.zip
occupancy.zip …Category: file-utils
Read Moretitle: "List Operations" author: "Rj" date: 2019-04-20 description: "-" type: technical_note draft: false
list = [
"AB",
"CD",
"EF",
"GH",
"IJ",
"KL",
"MN",
"OP",
"QR",
"ST",
"UV",
"WX",
"YZ"
]
list
['AB', 'CD', 'EF', 'GH', 'IJ', 'KL', 'MN', 'OP', 'QR', 'ST', 'UV', 'WX', 'YZ']
# append to list
list.append("ABC")
list
['AB',
'CD',
'EF …Category: basics
Read Moretitle: "List Reference" author: "Rj" date: 2019-04-20 description: "List Test" type: technical_note draft: false
a = [
1, 2, 3, 4
]
b = a
b
[1, 2, 3, 4]
b.append(5)
a
[1, 2, 3, 4, 5]
As b is referring to a, whatever is added to b, will be reflected to …
Category: basics
Read Moretitle: "Remove Item from list" author: "Rj" date: 2019-04-20 description: "-" type: technical_note draft: false
names = [
"Kevin",
"Peter",
"John"
]
names
['Kevin', 'Peter', 'John']
names.pop(0)
'Kevin'
names
['Peter', 'John']
Score: 5
Category: basics
Read Moretitle: "List Test" author: "Rj" date: 2019-04-20 description: "List Test" type: technical_note draft: false
entries = ['one', 2, 'three', False]
print(entries)
['one', 2, 'three', False]
print(entries[2:7])
['three', False]
entryTuple = (100, 200, 'three', 'four')
print(entryTuple)
(100, 200, 'three', 'four')
cities = ['Toronto', 'Monteal', 'Vancouver']
print(cities)
['Toronto', 'Monteal …Category: basics
Read Moretitle: "List Test 2" author: "Rj" date: 2019-04-20 description: "List Test" type: technical_note draft: false
entries = ['one', 2, 'three', False]
print(entries)
['one', 2, 'three', False]
print(entries[2:7])
['three', False]
entryTuple = (100, 200, 'three', 'four')
print(entryTuple)
(100, 200, 'three', 'four')
cities = ['Toronto', 'Monteal', 'Vancouver']
print(cities)
['Toronto …Category: basics
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import pyutil as pyu
pyu.get_local_pyinfo()
'conda env: ml311; pyv: 3.11.10 (main, Oct 3 2024, 07:29:13) [GCC 11.2.0]'
print(pyu.ps2("haystack-ai ollama-haystack python-dotenv"))
haystack-ai==2.8.0
ollama-haystack is not installed in the current environment.
python-dotenv==1.0.1
lista = ["one", 2, "three …Category: basics
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import pandas as pd
from IPython.display import display
# Example list of tuples
data = [
(1, 'Alice', 25),
(2, 'Bob', 30),
(3, 'Charlie', 35)
]
# Convert the list of tuples to a DataFrame
df = pd.DataFrame(data, columns=['ID', 'Name', 'Age'])
# Set display options
pd.set_option('display.max_rows', 100)
pd.set_option('display …Category: pandas
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import pandas as pd
from IPython.display import display
# Example list of tuples
data = [
(1, 'Alice', 25),
(2, 'Bob', 30),
(3, 'Charlie', 35)
]
# Convert the list of tuples to a DataFrame
df = pd.DataFrame(data, columns=['ID', 'Name', 'Age'])
# Set display options
pd.set_option('display.max_rows', 100)
pd.set_option('display …Category: duckdb
Read Moretitle: "If Else Pandas" author: "Rj" date: 2019-04-24 description: "-" type: technical_note draft: false source: http://pandas.pydata.org/pandas-docs/version/0.24/user_guide/cookbook.html#idioms
import numpy as np
import pandas as pd
df = pd.DataFrame({
'maths' : [80, 89, 90, 20],
'science' : [40, 50, 90, 100],
'language' : [20, 30 …Category: data-wrangling
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