flet==0.25.0.dev3673 matplotlib error on iphone

[InesaFitsner]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

Error displayed on iphone after running basic test:

matplotlib: test_basic - error: dlopen(/Users/inesa/Library/Developer/CoreSimulator/Devices/D3463E8E-AC7A-45B1-82A6-B0E989B29132/data/Containers/Bundle/Application/9648609F-2B5A-4494-9196-1A12FB5EE5FC/Runner.app/Frameworks/PIL._imaging.framework/PIL._imaging, 0x0002): Library not loaded: @rpath/libjpeg.62.dylib
Referenced from: /Users/inesa/Library/Developer/CoreSimulator/Devices/D3463E8E-AC7A-45B1-82A6-B0E989B29132/data/Containers/Bundle/Application/9648609F-2B5A-4494-9196-1A12FB5EE5FC/Runner.app/Frameworks/PIL._imaging.framework/PIL._imaging
Reason: tried: '/Users/inesa/Library/Developer/CoreSimulator/Devices/D3463E8E-AC7A-45B1-82A6-B0E989B29132/data/Containers/Bundle/Application/9648609F-2B5A-4494-9196-1A12FB5EE5FC/Runner.app/libjpeg.62.dylib' (no such file), '/Library/Developer/CoreSimulator/Volumes/iOS_22A3351/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.0.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/libjpeg.62.dylib' (no such file), '/usr/lib/swift/libjpeg.62.dylib' (no such file, not in dyld cache), '/Users/inesa/Library/Developer/CoreSimulator/Devices/D3463E8E-AC7A-45B1-82A6-B0E989B29132/data/Containers/Bundle/Application/9648609F-2B5A-4494-9196-1A12FB5EE5FC/Runner.app/Frameworks/libjpeg.62.dylib' (no such file), '/Users/inesa/Library/Developer/CoreSimulator/Devices/D3463E8E-AC7A-45B1-82A6-B0E989B29132/data/Containers/Bundle/Application/9648609F-2B5A-4494-9196-1A12FB5EE5FC/

Code sample

Code

import io

import flet as ft

# from os.path import dirname, join


def main(page: ft.Page):
    page.title = "Flet libs test"

    def matplotlib_tests(e):
        def test_basic():
            try:
                import matplotlib

                page.add(ft.Text("import matplotlib: OK"))

                from flet.matplotlib_chart import MatplotlibChart

                import matplotlib.pyplot as plt

                matplotlib.use("svg")
                fig, ax = plt.subplots()
                fruits = ["apple", "blueberry", "cherry", "orange"]
                counts = [40, 100, 30, 55]
                bar_labels = ["red", "blue", "_red", "orange"]
                bar_colors = ["tab:red", "tab:blue", "tab:red", "tab:orange"]
                ax.bar(fruits, counts, label=bar_labels, color=bar_colors)
                ax.set_ylabel("fruit supply")
                ax.set_title("Fruit supply by kind and color")
                ax.legend(title="Fruit color")
                page.add(MatplotlibChart(fig, expand=True))
                plt.figure()
                plt.plot([1, 2])
                bio = io.BytesIO()
                plt.savefig(bio, format="png")
                b = bio.getvalue()
                EXPECTED_LEN = 16782
                assert len(b) > int(EXPECTED_LEN * 0.8)
                assert len(b) < int(EXPECTED_LEN * 1.2)
                assert b[:24] == (
                    b"\x89PNG\r\n\x1a\n"
                    + b"\x00\x00\x00\rIHDR"  # File header
                    + b"\x00\x00\x02\x80"  # Header chunk header
                    + b"\x00\x00\x01\xe0"  # Width 640  # Height 480
                )

                page.add(ft.Text("matplotlib: test_basic - OK"))
            except Exception as e:
                page.add(
                    ft.Text(f"matplotlib: test_basic - error: {e}", selectable=True)
                )

        test_basic()

    page.add(
        ft.SafeArea(
            ft.Column(
                [
                    ft.ElevatedButton(
                        "Run Matplotlib tests", on_click=matplotlib_tests
                    ),
                ]
            )
        )
    )


ft.app(main)

pyproject.toml:

[project]

name = "matplotlib_app"
version = "1.0.0"
description = ""
authors = [{name = "Flet Developer", email = "your@email.com"}]
dependencies = ["flet==0.25.0.dev3673", "matplotlib"]

[tool.flet]
android.adaptive_icon_background = "#ffffff"

To reproduce

1. flet build ipa
2. Set environment variable export SERIOUS_PYTHON_SITE_PACKAGES=[Path-to-site-packages]
3. in build/flutter folder, flutter run, choose iphone device -> app opens on iphone
4. On the app click on "Run matplotlib tests" button

Expected behavior

Expected to see matplotlib chart and basic test - OK message

Screenshots / Videos

Captures

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Operating System

macOS

Operating system details

15

Flet version

flet==0.25.0.dev3673

Regression

No, it isn't

Suggestions

No response

Logs

Logs

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Additional details

No response