The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

  • My badges

    Mastodon

  • Twitter Updates

  • My Flickr Stream

    20140508-Delphi-2007--Project-Options--Cannot-Edit-Application-Title-HelpFile-Icon-Theming20140430-Fiddler-Filter-Actions-Button-Run-Filterset-now20140424-VMware-Fusion-6.0.3.-no-reclaimable
    More Photos

  • Pages

  • All categories

  • Enter your email address to subscribe to this blog and receive notifications of new posts by email.

    Join 1,854 other subscribers

“I tyically ask recruiters to point out which of these are pokemon” – via “my linkedin profile : ProgrammerHumor”

Posted by jpluimers on 2018/12/19

[Archive.is] Vincent D. Warmerdam (also known as koaning; D is for Damian) put Start-up or Pokémon? Big-data or Pokémon? into practice a while back:

my linkedin profile: “I tyically ask recruiters to point out which of these are pokemon”

Source: [WayBack] “my linkedin profile : ProgrammerHumor”

He’s a very interesting person to follow:

I also discovered https://bl.ocks.org because of Vincent. More on that later.

–jeroen

Read the rest of this entry »

Posted in Cloud Development, Development, Software Development | Leave a Comment »

Python threading: logging exceptions during the `run`

Posted by jpluimers on 2018/12/19

In A few observations on Python while I made my first steps into it, I mentioned the standard threading idiom in Python by wrapping the thread in a function. This has the drawback of having to catch and handle any exceptions in that function.

The higher level [WayBack] threading module has a [WayBack] Thread class with a [WayBack] run() method does not handle exceptions either.

For investigation of threading issues, it’s very convenient to know about the exceptions in a thread and their context.

So I’ve made a small base class that automagically logs any exceptions during a run:

import threading

from log import Log

class ExceptionLoggingThread(threading.Thread):

    def __init__(self):
        threading.Thread.__init__(self)
        self.logger = Log().getLogger()
        self.logger.debug("ExceptionLoggingThread().")

    def run_logic(self):
        self.logger.debug("Thread started.")

    def run(self):
        try:
            self.run_logic()
        except:
            self.logger.exception('Exception in `run`')
            raise

–jeroen

Posted in Development, Python, Scripting, Software Development | Leave a Comment »

Spring4D Conference

Posted by jpluimers on 2018/12/19

Do not forget the early bird sales ends soon for the Spring4D European Conference 2018 – Bergamo Italy, right before Easter 2019.

Both the original author and the current maintainer will be there, and it will be a great place to socialize with fellow Spring4D users.

Buy tickets: [WayBack] Spring4D Conference

Via:

–jeroen

Posted in Delphi, Development, Software Development, Spring4D | Leave a Comment »

git – I ran into a merge conflict. How can I abort the merge? – Stack Overflow

Posted by jpluimers on 2018/12/18

I need this one day: [WayBack] git – I ran into a merge conflict. How can I abort the merge? – Stack Overflow

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »

Links to help me monitor my Zeverlution PV converter locally

Posted by jpluimers on 2018/12/18

Since it’s my data, I’d rather be in control myself, so here are some links that will help me going around the Zevercloud solution I posted about yesterday.

Some other interesting links of software supporting Zeversolar devices:

Note that PVoutput.org does have native ZeverCloud updating using the ZeverSolar API key:

But these might help me:

–jeroen

Read the rest of this entry »

Posted in Development, Hardware Interfacing, LifeHacker, Power User, Software Development, Solar Power, Zeverlution, Zeversolar | Leave a Comment »

Reminder to self: make a list of URL suffixes to show branch diagrams of repositories

Posted by jpluimers on 2018/12/18

One of the BitBucket features I like a lot is that in the commit history, you see the branches involved in a nice diagram on the left side of the commits: https://bitbucket.org/pypy/pypy/commits

BitBucket used to be popular to host public repositories, but from a public perspective, they are on the decline for that (they even removed the [once popular] bitbucket.org/explore page and [WayBack] will not re-introduce it).

Right now, only major git based hosters still have explore pages:

So it makes sense to see where they provide diagrams of branches, so here are some examples to go from a project to the graph:

–jeroen

Posted in BitBucket, Development, DVCS - Distributed Version Control, git, GitHub, GitLab, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

Never ever put OutpugDebugString in code that is meant to run on production systems

Posted by jpluimers on 2018/12/18

I just saw this code in the Delphi RTL enabled for RELEASE builds of the procedure TThreadPool.TQueueWorkerThread.Execute; code:

{$IFDEF MSWINDOWS}
    OutputDebugString(PChar(Format('Thread Exiting: %d', [ThreadId])));
{$ENDIF}

Never, ever do this.

If you code review code that contains it: ensure it has some kind of compile time DEBUG conditional around it.

–jeroen

Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | 12 Comments »

linux – Is there a way to remove “Last message repeated x times” from logs? – Server Fault

Posted by jpluimers on 2018/12/17

One day I will need to enable repeating those messages: [WayBack] linux – Is there a way to remove “Last message repeated x times” from logs? – Server Fault

–jeroen

Posted in *nix, *nix-tools, Linux, Power User | Leave a Comment »

Registering your Zeverlution device in the Zeversolar cloud

Posted by jpluimers on 2018/12/17

If you have a Zeverlution PV converter, the easiest to get at the data is through the Zeversolar cloud.

The included documentation does not contain web browser registration instructions, only Android/iOS app.

So here we go:

  1. Create an account at [WayBack] ZeverCloud – Login: click CREATE AN ACCOUNT, then
    1. Fill in these fields:
      • Email
      • Password
      • Re-type Your Password
    2. Check the I agree to the Terms of Service & Privacy Policy box
    3. Press SUBMIT button
    4. Wait for your confirmation email to arrive
    5. Confirm your account
    6. Logon
  2. Follow the https://www.zevercloud.com/station/create link, then
    1. Fill in these fields:
      1. Monitor SN (this is actually the MAC address without seperator; it starts with EAB961 which is an unknown OUI)
      2. Registry Key
    2. Press the Continue button
    3. Fill in these fields:
      1. Plant Name
      2. Installed Capacity (note the unit is not Wp, but KWp, so multiply the # of panels by the Wp of the panels, then devide by 1000)
      3. Commissioning (date in YYYY-MM-DD format)
      4. Company/Organization
    4. Press the Continue button
    5. Fill in these fields:
      1. CO2 Avoided Factor (the unit is Kg/KWh; For The Netherlands get it from [Archive.is] Lijst emissiefactoren | CO2 emissiefactoren under ELEKTRICITEIT)
      2. Yield Factor (the unit is Currency/KWh where Currency is from field 3; get this from your local energy supplier)
      3. Currency
      4. Timezone *
    6. Check the Automatically adjust clock for Daylight Saving Time box
    7. Press the Continue button
    8. Fill in these fields:
      1. Country
      2. State
        1. Since this field could not be filled in for The Netherlands, I changed it using the Chrome Developer Tools having one option value: <option value="0">N/A</option>
      3. City
      4. Street/No.
      5. Zip Code
      6. Longitude
      7. Latitude
    9. Press the Save button

Note that the 2.0.2 version of [WayBack] ZeverCloud – Apps on Google Play does not work on Android Oreo.

Via internal Zeversolar channels, I got 2.0.2 development version Android works on Oreo – ZeverCloud.apk.zip which despite the same version number, does work.

–jeroen

Read the rest of this entry »

Posted in About, LifeHacker, Power User, Solar Power | Leave a Comment »

Start-up or Pokémon? Big-data or Pokémon?

Posted by jpluimers on 2018/12/17

Remember the introduction of Pokémon during summer 2016? Despite usage being far less by now ([WayBack] 80 Amazing Pokemon Go Statistics and Facts) you might still recollect the odd names the Pokémon Go characters in the Pokédex had: [WayBack] List of Pokémon – Wikipedia.

Back then I had the vague sense that some names reminded me of species, and others of companies. Both appeared to be true, for instance [WayBack] Seel looks awfully familiar to Seal. Domo has many meanings (including a Dutch dairy desert). Oh, and [WayBack] Gloom has quite a few meanings so I’m OK with being confused.

So I was amused bumping into these a while back: Pokémon names versus those of names of start-up and big-data companies:

The quizes also have very funny descriptions of what the companies behind the names stand (stood?) for, like “Hadoop is distributed system for counting words”.

Via many, including:

Maybe I should turn the GitHub repository in to a Google Assistant Trivia questionaire using a Google Sheet.

–jeroen

Read the rest of this entry »

Posted in Cloud, Fun, Infrastructure, Power User | Leave a Comment »

« Previous Entries
Next Entries »