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BTW, please give this setup file a try: https://www.b4x.com/b4j/files/PyPDF_Example.exe
Well... I don't know if this must run at Windows 7, 64bit - in virtualbox... other aps created with b4j (for example my msupport-remote admin) working... but this seems not works at Windows 7 (no python installed)..
So... i get into application folder under python/python... and run direct the python.exe
got this:
Searched a little the web and found this answer:
Getting api-ms-win-core-path-l1-1-0.dll is missing error · FlareSolverr FlareSolverr · Discussion #793
I'm on Windows 7, so I'm guessing this is because FlareSolverr is Windows 10 only? :\
github.com
So Python 3.9+ needs Windows 10+
* also i don't know if we are speaking about B4X apps... if we also put into it.. b4a / b4i... will be a version of pybridge/python for them? (i hope some day will have)
Good point. It will not work with Python 3.8. So is supported on Windows 10+ (8 might also be supported).
B4J only.
Indeed, Python 3.9+ does not work on Windows 7, but you can download a Python branch 3.10 for Windows 7, it also works.
That's great news..
It is just need to replace python folder... with "branch" ?... LOL
Yes, it is. don't forget to install fpdf2 module
And here is something that I find to be quite amazing:
Everything runs local, after the model is downloaded (16 GB).
I'm running it on a Linux computer with quite a powerful GPU. Using B4J-Bridge and remote desktop.
For the heavy stuff, Linux works better.
The interesting code
Everything runs local, after the model is downloaded (16 GB).
I'm running it on a Linux computer with quite a powerful GPU. Using B4J-Bridge and remote desktop.
For the heavy stuff, Linux works better.
The interesting code
B4X:
Private Sub btnSend_Click
Dim msg As String = txtInput.Text.Trim
If msg.Length = 0 Then Return
CustomListView1.AddTextItem("User: " & msg, "")
PrevMessages.Add(msg)
SetBusy(True)
Dim SystemPrompt As String = "You are a frienly assistant named Eric. Provide concise and short answers."
Wait For (GenerateResponse(SystemPrompt, PrevMessages)) Complete (Response As String)
SetBusy(False)
PrevMessages.Add(Response)
txtInput.SelectAll
txtInput.RequestFocus
CustomListView1.AddTextItem("Assistant: " & Response, "")
Sleep(0)
CustomListView1.ScrollToItem(CustomListView1.Size - 1)
End Sub
Private Sub GenerateResponse (SystemPrompt As String, Messages As List) As ResumableSub
Dim chat As PyWrapper = CreateChatStructure(SystemPrompt, Messages)
chat.Print
Dim inputs As PyWrapper = Tokenizer.Run2("__call__", Array(Array(chat)), _
CreateMap("return_tensors": "pt")).Run("to", Array(Device))
Dim InputSize As PyWrapper = inputs.Get("input_ids").GetField("shape").Get(-1)
Dim MaxNewTokens As Int = 1000 'this has large effect on the performance
Dim output_ids As PyWrapper = Model.Run2("generate", Null, _
CreateMap("input_ids": inputs.Get("input_ids"), _
"attention_mask": inputs.Get("attention_mask"), _
"max_new_tokens": MaxNewTokens, "pad_token_id": Tokenizer.GetField("eos_token_id"), _
"do_sample": True))
output_ids = output_ids.Get(Array(Py.Utils.Slice(Null, Null), Py.Utils.Slice(InputSize, Null)))
Dim responses As PyWrapper = Tokenizer.Run2("batch_decode", Array(output_ids), CreateMap("skip_special_tokens": True))
Wait For (responses.Get(0).Fetch) Complete (Result As PyWrapper)
Return Result.Value
End Sub
Private Sub CreateChatStructure (SystemPrompt As String, Messages As List) As PyWrapper
Dim MessagesWithRoles As List
MessagesWithRoles.Initialize
MessagesWithRoles.Add(CreateMap("role": "system", "content": SystemPrompt))
For i = 0 To Messages.Size - 1
MessagesWithRoles.Add(CreateMap("role": IIf(i Mod 2 = 0, "user", "assistant"), _
"content": Messages.Get(i)))
Next
Return Tokenizer.Run2("apply_chat_template", Array(MessagesWithRoles), _
CreateMap("add_generation_prompt": True, "tokenize": False))
End SubPosting another example, that you cannot run yet, but it helps me test the framework. This time with a smaller LLM (large language model) and on Windows: https://huggingface.co/meta-llama/Llama-3.2-3B-Instruct
This example uses a feature named tool calling that allows the model to use external methods. The methods are defined in the system prompt. This means that the model can make calls to our code. In this example the method doesn't really do anything but it could. Note that the model understood the error message and was able to explain it to the user.
Very cool.
This example uses a feature named tool calling that allows the model to use external methods. The methods are defined in the system prompt. This means that the model can make calls to our code. In this example the method doesn't really do anything but it could. Note that the model understood the error message and was able to explain it to the user.
B4X:
Private Sub MakeToolCall (FunctionName As String, Params As Map) As String
Log($"${FunctionName} (${Params})"$)
If FunctionName = "insert_into_database" Then
'insert into db here...
Dim clr As String = Params.Get("color").As(String).ToLowerCase
Dim res As Map
If clr = "red" Or clr = "green" Or clr = "blue" Then
res = CreateMap("success": True, "name": Params.Get("name"))
Else
res = CreateMap("success": False, "error message": "color must be 'red', 'green' or 'blue'")
End If
Return res.As(JSON).ToCompactString
Else
LogError("Unexpected function")
Return ""
End If
End SubVery cool.
I just found some time to finally play a bit with this, however with the pyFPDF example from post #15, I run into this error (the 'packaged' vesion runs just fine). Do I have to set a port somewhere? (java.lang.IllegalArgumentException: Port value out of range: -1):
B4X:
Waiting for debugger to connect...
Program started.
Error occurred on line: 31 (PyComm)
java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.keywords.Common.CallSubDebug2(Common.java:486)
at b4j.example.b4xpagesmanager._createpageifneeded(b4xpagesmanager.java:875)
at b4j.example.b4xpagesmanager._showpage(b4xpagesmanager.java:354)
at b4j.example.b4xpagesmanager._addpage(b4xpagesmanager.java:175)
at b4j.example.b4xpagesmanager._addpageandcreate(b4xpagesmanager.java:189)
at b4j.example.b4xpagesmanager._initialize(b4xpagesmanager.java:125)
at b4j.example.main._appstart(main.java:85)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:629)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:237)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
at b4j.example.main.start(main.java:38)
at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:846)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:455)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:134)
at anywheresoftware.b4a.debug.Debug.CallSubNew2(Debug.java:81)
... 35 more
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:115)
... 36 more
Caused by: java.lang.IllegalArgumentException: Port value out of range: -1
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:238)
at java.base/java.net.ServerSocket.<init>(ServerSocket.java:135)
at anywheresoftware.b4a.objects.SocketWrapper$ServerSocketWrapper.Initialize(SocketWrapper.java:226)
at b4j.example.pycomm._initializewithloopback(pycomm.java:354)
at b4j.example.pycomm._initialize(pycomm.java:130)
at b4j.example.pybridge._start(pybridge.java:216)
at b4j.example.b4xmainpage$ResumableSub_B4XPage_Created.resume(b4xmainpage.java:120)
at b4j.example.b4xmainpage._b4xpage_created(b4xmainpage.java:66)
... 41 moreYou need to update two internal libraries: https://www.b4x.com/android/forum/threads/updates-to-internal-libaries.48274/post-1014241
It is probably better to wait for the beta version. It will be released next week and will include everything needed.
It is probably better to wait for the beta version. It will be released next week and will include everything needed.
See this.
You maybe also missed the 2 libraries. the error is JNetwork is not been updated
Erel is faster than me
yeps, did that, but I'll wait until next week
Will check it at some point. Thanks for the suggestion.
PyBridge with jServer: https://b4x.com:51041/barcodegenerator/index.html
The barcodes are generated using: https://python-barcode.readthedocs.io/en/stable/contents.html
PyBridge is implemented with a background worker:
And this code is called from the handler:
The barcodes are generated using: https://python-barcode.readthedocs.io/en/stable/contents.html
PyBridge is implemented with a background worker:
B4X:
Private Sub Start
py.Initialize(Me, "py")
Dim opt As PyOptions = py.CreateOptions(Main.AppSettings.Get("Python"))
py.Start(opt)
Wait For py_Connected (Success As Boolean)
If Success = False Then
py_Disconnected
Return
End If
BarcodeEncoders.Initialize
BarcodeModule = py.Utils.ImportModule("barcode")
ImageWriter = py.Utils.ImportModule("barcode.writer").Run("ImageWriter", Null)
ImageWriter.Print
IOModule = py.Utils.ImportModule("io")
BarcodeEncoders.Put("EAN13", BarcodeModule.GetField("EAN13"))
BarcodeEncoders.Put("Code39", BarcodeModule.GetField("Code39"))
BarcodeEncoders.Put("Code128", BarcodeModule.GetField("Code128"))
BarcodeEncoders.Put("ISBN13", BarcodeModule.GetField("ISBN13"))
End Sub
'this is called from the websocket handler
Private Sub Barcode_Request (Req As BarcodeRequest)
Dim rv As PyWrapper = IOModule.Run("BytesIO", Null)
Dim Encoder As PyWrapper = BarcodeEncoders.Get(Req.BarcodeType)
Encoder.Run2("__call__", Array(Req.Text), CreateMap("writer": ImageWriter)) _
.Run("write", Array(rv))
Wait For (rv.Run("getvalue", Null).Fetch) Complete (Result As PyWrapper)
Try
Dim value() As Byte = Result.Value
CallSubDelayed2(Req.Callback, "Barcode_Ready", CreateBarcodeResponse(True, "", value))
Catch
Log(LastException)
CallSubDelayed2(Req.Callback, "Barcode_Ready", CreateBarcodeResponse(False, LastException.Message, Null))
End Try
End SubAnd this code is called from the handler:
B4X:
Dim req As BarcodeRequest = Main.CreateBarcodeRequest(code, Text, Me)
CallSubDelayed2(Main.BarcodeGenerator1, "Barcode_Request", req)
Wait For Barcode_Ready (Response As BarcodeResponse)
This is very useful. Currently, I have to start a local Python OCR server to integrate the OCR function in a B4J app: https://github.com/xulihang/ImageTrans_plugins/tree/master/mangaOCR
PyBridge is evolving. Another iteration of the barcode generation:
The equivalent python code for the image generation:
In this simple example the B4J code is a bit more verbose but really the same.
I hope to release a first beta next week.
B4X:
Private Sub CreateEAN13Barcode (Text As String) As ResumableSub
Dim BytesIO As PyWrapper = Py.ImportModuleFrom("io", "BytesIO")
Dim EAN13 As PyWrapper = Py.ImportModuleFrom("barcode", "EAN13")
Dim ImageWriter As PyWrapper = Py.ImportModuleFrom("barcode.writer", "ImageWriter")
Dim rv As PyWrapper = BytesIO.Call
EAN13.Call.Arg(Text).ArgNamed("writer", ImageWriter.Call).Run("write").Arg(rv)
Wait For (rv.Fetch) Complete (rv As PyWrapper) 'this brings the image to B4J process
Return Py.ImageFromBytes(rv.Value)
End Sub
'Usage:
Wait For (CreateEAN13Barcode("100000902922")) Complete (img As B4XBitmap)
ImageView1.SetBitmap(img)The equivalent python code for the image generation:
B4X:
from io import BytesIO
from barcode import EAN13
from barcode.writer import ImageWriter
rv = BytesIO()
EAN13(str(100000902922), writer=ImageWriter()).write(rv)In this simple example the B4J code is a bit more verbose but really the same.
I hope to release a first beta next week.