OStack Q&A-Knowledge Sharing Community

0 votes

335 views

1 answer

python - best way to convert large text file (900 mb, 300 columns, pipe delim) to pandas dataframe

i have a 900mb text file (pipe delim) that i need to convert to a pandas df and, ultimately, ingest to a ... -convert-large-text-file-900-mb-300-columns-pipe-delim-to-pandas...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.4k views

1 answer

sqlite - how to enable sqlite3 for php?

I am trying to install sqlite3 for PHP in Ubuntu. I install apt-get php5-sqlite3 and edited php.ini to include ... -connect-to-db-database-in-php-created-by-python-sqlite3-library...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

309 views

1 answer

python - Calculating Word Frequency in a String Without Using "Import" or NLTK

I write a text and I try to calculate word frequency for every word without using "import" and NLTK. It ... /calculating-word-frequency-in-a-string-without-using-import-or-nltk...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

687 views

1 answer

finance - How to create a program that gives you the present value of investment based on the amount and date it was invested

I am a new coder who just started learning python a few weeks ago, and thought it would be a fun project to ... -a-program-that-gives-you-the-present-value-of-investment-based-on...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

run bash script in PowerShell with ssh fails with invalid format

I created a simple bash script that runs fine on Ubuntu 18/20. Decided to port it onto PowerShell. I start ... /run-bash-script-in-powershell-with-ssh-fails-with-invalid-format...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

sql - Average Multiple Columns in Postgres

I have a table with multiple rows, each of which contains these four columns: product price_instore ... stackoverflow.com/questions/65854097/average-multiple-columns-in-postgres...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

316 views

1 answer

linux - How to do a rsync , verify the destination file that was copied, and then delete the src/ file?

I have two directories in a bash script held by these two variables $SRC $DEST How would I do a rsync copying ... -rsync-verify-the-destination-file-that-was-copied-and-then-delete...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

177 views

1 answer

eclipselink - JPA Attribute without indexing

I am using JPA with EclipseLink 2.1 in a JSF application, A JPA Entity has an attribute of a ... from:https://stackoverflow.com/questions/65854042/jpa-attribute-without-indexing...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

367 views

1 answer

bash - First and last line are not running in sh shell script

I don't know what's wrong with this script I run it through dockerfile but unfortunately, the line where I install ... /first-and-last-line-are-not-running-in-sh-shell-script...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

212 views

1 answer

python - How to write string to memoryview?

I want to write a bytearray type into a memoryview type. What I tried: my_memory_view = memoryview(b' ... stackoverflow.com/questions/65854002/how-to-write-string-to-memoryview...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

264 views

1 answer

javascript - props value not sending the updated value from parent to child component in vue

I have a parent child component. The issue I am facing here is that validation field which I am sending as a ... -sending-the-updated-value-from-parent-to-child-component-in-vue...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

213 views

1 answer

java - How to get the ip address of my computer not the virtual box adapters

In Java I'm trying to get the local machines ip address String address = InetAddress.getLocalHost().getHostAddress(); ... -ip-address-of-my-computer-not-the-virtual-box-adapters...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

363 views

1 answer

jsonnet - As far as I can tell, there is no way to parameterize character strings in an AllenNLP config file --- only ints or floats

So the issue is that, for using autotuning (like optuna) with AllenNLP, the suggested practice is to use, in jsonnet ... -there-is-no-way-to-parameterize-character-strings-in-an-al...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

339 views

1 answer

c# - DevExpress - Select multiple checkboxes in TreeList

Let's say if I have a TreeList of 2 groups, teachers and students, there is a column of ... /stackoverflow.com/questions/65853911/devexpress-select-multiple-checkboxes-in-treelist...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

407 views

1 answer

docker - why am I CrashLoopBackOff

Hi I'm getting CrashLoopBackOffin my container. Docker image is running fine in my laptop but I can run ... :https://stackoverflow.com/questions/65853900/why-am-i-crashloopbackoff...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

206 views

1 answer

r - Sum by Conditional Value Greater than Not by Bin Widths

I have a dataset and I'm trying to sum the values of transactions given a value in another column being greater ... 65854663/sum-by-conditional-value-greater-than-not-by-bin-widths...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

142 views

1 answer

javascript - Implement Vanta.js module into index.html?

I created a three.js background with Vanta.js If you use it as intended by the website, you only ... stackoverflow.com/questions/65854649/implement-vanta-js-module-into-index-html...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

258 views

1 answer

python - pip3 cannot install .whl files on raspberry pi: File is not a zip file

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. question from:https:/ ... -whl-files-on-raspberry-pi-file-is-not-a-zip-file...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

502 views

1 answer

swap - swapping the first and last letters of every word in a string using javascript

Given a string of words separated by spaces, write a function that swaps the first and last letters of every word. ... -and-last-letters-of-every-word-in-a-string-using-javascript...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

118 views

1 answer

node.js - oauth_problem=signature_invalid , Auoth 1.0 PUT request

Im trying to make an api call using ETSY api to update listing inventory. I'm getting this error : ... questions/65854567/oauth-problem-signature-invalid-auoth-1-0-put-request...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

525 views

1 answer

kubernetes - Is there a way to prevent an EKS NodeGroup (EC2 Autoscaling Group) from being used by the EC2 LoadBalancer?

I have an EKS cluster created with eksctl, with two unmanaged nodegroups. ingress-nginx and cluster-autoscaler are ... prevent-an-eks-nodegroup-ec2-autoscaling-group-from-being-us...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

127 views

1 answer

c# - Xamarin Mac - How to create and use an NSCollectionView with 100% code (no xib)?

Using the info from these SO answers: How to create NSCollectionView programmatically from scratch? Is there a way to ... -create-and-use-an-nscollectionview-with-100-code-no-xib...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

380 views

1 answer

Add number to a grid Tikz LaTeX

How do I add numbers outside the below grid. I tried the following code but it is not centred and I cannot ... /stackoverflow.com/questions/65854496/add-number-to-a-grid-tikz-latex...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

522 views

1 answer

django rest framework - PATCH request only targeting the first item in an array in Vue v-for loop

I have a pantry app I recently built as a school project and I've noticed a bug where a form in a modal only updates ... only-targeting-the-first-item-in-an-array-in-vue-v-for-loop...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

129 views

1 answer

javascript - trying to not to iterate on undefined or not available objects

I am trying to add type of material objects to the array using below code but getting an error when one of the ... /trying-to-not-to-iterate-on-undefined-or-not-available-objects...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

179 views

1 answer

ios - didRegisterForRemoteNotificationsWithDeviceToken isn't called when requesting notification permission after app launch

I am following the push notification tutorial here: https://www.raywenderlich.com/ ... /65854361/didregisterforremotenotificationswithdevicetoken-isnt-called-when-requesting-no...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

148 views

1 answer

java - How to create a collection/list of instances of many classes which implement two common interfaces (without modifying those classes)?

I have two interfaces (IfaceA, IfaceB) and two classes implementing those interface (class C, class D): ... -collection-list-of-instances-of-many-classes-which-implement-two...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

561 views

1 answer

c# - how to fix operator '==' is ambiguous on operands of type ulong and long

I'm currently building a new command in my Discord Server and i'm struggling to convert the UserId back to the ... 65854294/operator-is-ambiguous-on-operands-of-type-long-and-ulong...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags