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pyscripter

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Everything posted by pyscripter

  1. pyscripter

    Delphi 10.4.2 first impressions

    This makes sense. "Finish incomplete properties" can be very annoying when combined with "Auto invoke" so it is disabled.
  2. pyscripter

    Delphi 10.4.2 first impressions

    Could it be that you have unchecked the "Finish incomplete properties"? Works here as expected.
  3. pyscripter

    Trouble installing Python4Delphi

    No need for any of that, if you are not building applications with run-time packages and most likely you are not. Just change the platform of your project to Win64 and build it.
  4. pyscripter

    exit terminates delphi app

    Fixed in version control. See https://github.com/pyscripter/python4delphi/issues/292 Now SystemExit results in a EPySystemExit exception which can be handled in Delphi code. Process termination is prevented.
  5. pyscripter

    exit terminates delphi app

    P4D does something similar with custom variants and the Varpyth unit.
  6. pyscripter

    exit terminates delphi app

    Which flag do you pass to PyRun_StringFlags?
  7. pyscripter

    exit terminates delphi app

    Any reason for not using P4D?
  8. pyscripter

    exit terminates delphi app

    All of these suggestions can be implemented without modifying your python code. For example you can just add the suggested code to the PythonEngine.InitScript.
  9. pyscripter

    Trouble installing Python4Delphi

    @vmishkaYou are using Delphi 10.4 (which is the reason for the problems you are facing). You need to upgrade to 10.4.1 or even better to the just released10.4.2. This is a new installation. You need to download the installer from Registered Products Portal (embarcadero.com)
  10. pyscripter

    exit terminates delphi app

    exit() raises the SystemExit exception, which unlike other exceptions, results in process termination before control gets back to Delphi. To prevent process termination you can do one of the following: wrap the python code in a try: except SystemExit: as suggested by @fjames above "overwrite" the exit method by for example running the following code after the python engine is initialized: def _exit(): print("exit prevented") __builtins__.exit = _exit import sys sys.exit = _exit del(_exit) overwrite the SystemExit exception!
  11. pyscripter

    Trouble installing Python4Delphi

    The design time packages are 32-bit so you need to add the paths to the 32-bit target. The group project contains runtime and designtime packages. You first need to compile/build the runtime packages for target 32-bits. Optionally and only if you want to build 64-bit applications with runtime package, build 64-bit runtime packages: - Python270.bpl - PythonVcl270.bpl - PythonFmx270.bpl Then install the Design time packages (these are always 32-bits) - dclPython270.bpl - dclPythonVcl270.bpl - dclPythonFmx270.bpl
  12. I was bitten by this a few times in previous upgrades. This time I knew better...
  13. I think a (the) highlight of this release is fixing [RSP-27375] Compiler generates disadvantageous code for try/finally - Embarcadero Technologies. Thanks to @Mahdi Safsafifor coming up with a great suggestion and @Stefan Glienkefor creating the issue and pushing hard for its resolution.
  14. pyscripter

    TTreeNode leak when VCL styles are active

    SVGIconImageList/Demo at master · EtheaDev/SVGIconImageList (github.com) is not a bad starting point for debugging. The treeview has no interaction with the rest of the program.
  15. pyscripter

    TTreeNode leak when VCL styles are active

    In the SvgIconImageList demo case, the application was compiled with the Windows default style and the error occurs when you change the style at runtime. I think that may be significant because it causes the controls to be recreated.
  16. pyscripter

    NumPy + Demo34

    Did you see my answer in Demo34 + NumPy · Issue #287 · pyscripter/python4delphi (github.com)? Did you try what I suggested there?
  17. pyscripter

    TTreeNode leak when VCL styles are active

    The bug is not related to frames.
  18. pyscripter

    TTreeNode leak when VCL styles are active

    @Carlo Barazzetta SVGIconImageList/Demo at master · EtheaDev/SVGIconImageList (github.com) suffers from the same problem.
  19. I am not sure many know that since the Windows Creators update, svg parsing and painting is natively supported and is part of Direct2D. I wanted to test this Windows feature, however, the first obstacle was that the Direct2d headers that come with Delphi are very very old. There are two open tickets in https://quality.embarcadero.com/. Direct2D 1.1 support missing (open since XE7!) Direct2D 1.2 and 1.3 support missing You may want to vote for them, since lack of good Direct2D support (includes DirectWrite) it is a bit of a shame. I then looked at other Direct2D translations and found two that are regularly updated. MfPack DelphiDX12 They both had some issues but that was a good start. It turned out that parsing and painting svg files to Canvas is quite straightforward. Once you establish a renderer (Vcl.Direct2d does this, but it is easy to do it from scratch) you can do everything with two lines of code. fDeviceContext5.CreateSvgDocument(fStream, D2D1SizeF(ClientWidth, ClientHeight), fsvgDocument); fDeviceContext5.DrawSvgDocument(fsvgDocument); You can check whether Svg is supported by: if Supports( rt, ID2D1DeviceContext5, fDeviceContext5) then And it is easy to do things like scaling, opacity, rotation, recoloring etc. The quality and speed appear to be quite good, but there are some limitations, the most important of which I think is the lack of support for the text element. I am attaching the source code of my test project (no dependencies) in case anyone wants to play with it. The Svg scales automatically as you resize the form. Svg.zip
  20. pyscripter

    Import Requests

    P4D supports named parameters as follows: requests.get('http://192.168.1.200/gci-bin/users', auth:=requests.HTTPDigestAuth('admin','admin') Please note the := notation.
  21. pyscripter

    Prevent External DLL from Exiting Application

    Sometimes it helps to trap the SystemExit exception. This would avoid many abnormal application exits. try: """ Add your Python code here""" except SystemExit as e:
  22. pyscripter

    Clearing the Main Module

    There are many ways to achieve what you want: 1. The ExecString has an overloaded form: procedure TPythonEngine.ExecString(const command : AnsiString; locals, globals : PPyObject ); You can pass a new empty dictionary to the locals and globals argument if you do not want to "pollute" the interpreter namespace. 2. You can manually do the clean up as you suggest above. 3. A more advanced way is to use subinterpreters (have a look at TPythonThread.Execute), but this is more error prone.
  23. I can confirm the issue. Could you please open an issue at Issues · pyscripter/python4delphi (github.com) so that we can track the progress in resolving this?
  24. Download the binary release.
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