fun mutableMapWithCapacity(capacity: Int): MutableMap = LinkedHashMap(capacity) fun mutableListWithCapacity(capacity: Int): MutableList = ArrayList(capacity) https://stackoverflow.com/questions/61698098/kotlin-mutablelist-initial-capacity Kotlin MutableList initial capacity I'm creating a list of values, in a context where it so happens that, though the values are being added one at a time, the ..
def execute(): if condition: raise AirflowSkipException task = PythonOperator(task_id='task', python_callable=execute, dag=some_dag) https://stackoverflow.com/questions/58414350/how-to-skip-task-in-airflow-operator How to skip task in Airflow operator? Is there a way for Airflow to skip current task from the PythonOperator? For example: def execute(): if condition: skip_current_task() task = Pyt..
https://aws.amazon.com/ko/blogs/big-data/using-spark-sql-for-etl/ Using Spark SQL for ETL | Amazon Web Services Ben Snively is a Solutions Architect with AWS With big data, you deal with many different formats and large volumes of data. SQL-style queries have been around for nearly four decades. Many systems support SQL-style syntax on top of the data layers, and th aws.amazon.com
pip3 install git+https://github.com/jkbr/httpie.git#egg=httpie https://stackoverflow.com/questions/15268953/how-to-install-python-package-from-github How to install Python package from GitHub? I want to use a new feature of httpie. This feature is in the github repo https://github.com/jkbr/httpie but not in the release on the python package index https://pypi.python.org/pypi/httpie How... stacko..
from typing import Callable def my_function(func: Callable): https://stackoverflow.com/questions/37835179/how-can-i-specify-the-function-type-in-my-type-hints How can I specify the function type in my type hints? How can I specify the type hint of a variable as a function type? There is no typing.Function, and I could not find anything in the relevant PEP, PEP 483. stackoverflow.com https://docs..
https://stackoverflow.com/questions/4610904/calculate-next-scheduled-time-based-on-cron-spec >> croniter.match("0 0 * * *", datetime(2019, 1, 14, 0, 0, 0, 0)) True >>> croniter.match("0 0 * * *", datetime(2019, 1, 14, 0, 2, 0, 0)) False >>> >>> croniter.match("2 4 1 * wed", datetime(2019, 1, 1, 4, 2, 0, 0)) # 04:02 on every Wednesday OR on 1st day of month True >>> croniter.match("2 4 1 * wed", ..
https://stackoverflow.com/questions/28154066/how-to-convert-datetime-to-integer-in-python How to convert datetime to integer in python How can I convert YYYY-MM-DD hh:mm:ss format to integer in python? for example 2014-02-12 20:51:14 -> to integer. I only know how to convert hh:mm:ss but not yyyy-mm-dd hh:mm:ss def time_to_num( stackoverflow.com
import os import sys n = int(sys.argv[1]) a = 2 tables = [] for _ in range(n): tables.append(sys.argv[a]) a += 1 print(tables) https://stackoverflow.com/questions/32217160/can-i-add-arguments-to-python-code-when-i-submit-spark-job Can I add arguments to python code when I submit spark job? I'm trying to use spark-submit to execute my python code in spark cluster. Generally we run spark-submit wi..
repositories { maven { url "http://oss.sonatype.org/content/repositories/snapshots" allowInsecureProtocol = true } // other repositories ... } repositories { maven { url = uri("http://oss.sonatype.org/content/repositories/snapshots") isAllowInsecureProtocol = true } // other repositories ... } https://stackoverflow.com/questions/68585885/allow-insecure-protocols-android-gradle Allow insecure pro..
https://stackoverflow.com/questions/6780678/run-class-in-jar-file Run class in Jar file If you have a jar file called myJar.jar located in /myfolder and you want to use the class called myClass from it, how do you go about doing it from the command line? I thought it would be to go in... stackoverflow.com
https://artifacthub.io/packages/helm/airflow-helm/airflow/8.7.0 airflow 8.7.0 · airflow-helm/airflow-helm Airflow Helm Chart (User Community) - the standard way to deploy Apache Airflow on Kubernetes with Helm artifacthub.io airflow: airflow: image: repository: 123123.dkr.ecr.ap-northeast-2.amazonaws.com/airflow tag: base-0.0.0-230417174017 executor: KubernetesExecutor config: AIRFLOW__CORE__LOA..
https://jhleeeme.github.io/spark-temp-view/ [Spark] Temp View 생성 및 삭제 | 내가 다시 보려고 만든 블로그 Temp View 생성 및 삭제하기– spark 2.x 버전 기준으로 작성1. Temp View란?– SQL의 그것, View (Table 말고)Spark내에서 데이터 분석작업을 할 때DataFrame API말고, 친근한 SQL문으로 데이터를 다룰 수 있다.SparkS jhleeeme.github.io
import pandas as pd # 예시 데이터프레임 생성 df = pd.DataFrame({'A': ['apple', 'banana', 'cherry', 'date', 'elderberry']}) # 'A' 열을 lexicographical 순서로 정렬하여 가장 작은 문자열 값 찾기 min_value = df['A'].sort_values().iloc[0] # 결과 출력 print("가장 작은 문자열 값:", min_value)
import pandas as pd # 예시 데이터프레임 생성 df = pd.DataFrame({'이름': ['홍길동', '김철수', '이영희', '박종민', '정지원'], '나이': [30, 25, 28, 35, 22], '성별': ['남', '남', '여', '남', '남']}) # '이름' 컬럼에서 성이 '김'인 경우만 필터링하여 새로운 데이터프레임 생성 filtered_df = df[df['이름'].str.startswith('김')] # 필터링된 결과 출력 print(filtered_df) reference: chatGPT
soup = BeautifulSoup(s, "html.parser") https://stackoverflow.com/questions/24398302/bs4-featurenotfound-couldnt-find-a-tree-builder-with-the-features-you-requeste bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library ... soup = BeautifulSoup(html, "lxml") File "/Library/Python/2.7/site-packages/bs4/__init__.py", line 152,..
#!/bin/bash GROUP=$1 PORT=$2 aws ec2 describe-instances \ --filters "Name=instance-state-name,Values=running" | \ jq -r --arg GROUP "${GROUP}" --arg PORT "${PORT}" \ '.Reservations[].Instances[] | $GROUP + " / " + (.PlatformDetails | split("/") | join(" / "))+ " / " + (.Tags[] | select(.Key == "Name") | .Value) + " / " + .PrivateIpAddress + " / " + $PORT' # group / Linux / UNIX / abc / 1.2.3.4 /..
brew update brew install postgresql brew services start postgresql psql postgres CREATE DATABASE test; CREATE ROLE admin WITH LOGIN PASSWORD 'qwer1234'; SELECT rolname FROM pg_roles; https://velog.io/@dhleeone/PostgreSQL-Mac%EC%97%90%EC%84%9C-Homebrew%EB%A1%9C-PostgreSQL-%EC%84%A4%EC%B9%98%ED%95%98%EA%B8%B0 [PostgreSQL] Mac에서 Homebrew로 PostgreSQL 설치하기 Homebrew에서 패키지를 설치하기 전에 다음 명령어를 터미널에 입력하면 패키..
S3 write 권한을 준다음 s3://abc/def/ zeppelin spark interpreter 를 spark.yarn.stagingDir = s3://abc/def/ 로 지정하는 경우 403 에러가 발생한다.. 권한을 준 s3://abc/def/123 처럼 하위 디렉터리로 설정하면 이 문제를 해결 할 수 있다. 아마도 zeppein spark interpreter 설정에서 / slash 를 제거하여 동작하기 때문이지 않을까 싶다.. https://repost.aws/ko/knowledge-center/emr-s3-403-access-denied Amazon EMR에서 HTTP 403 "액세스가 거부됨" AmazonS3Exception 문제 해결 | AWS re:Post Amazon EMR 클러스..
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