Arduino ide python path

Troubleshooting¶

Here are some of the most common issues around the ESP32 development using Arduino.

Please consider contributing if you have found any issues with the solution here.

Installing¶

Here are the common issues during the installation.

Building¶

Missing Python: “python”: executable file not found in $PATH¶

You are trying to build your sketch using Ubuntu and this message appears:

"exec: "python": executable file not found in $PATH Error compiling for board ESP32 Dev Module" 

Solution¶

To avoid this error, you can install the python-is-python3 package to create the symbolic links.

sudo apt install python-is-python3

If you are not using Ubuntu, you can check if you have the Python correctly installed or the presence of the symbolic links/environment variables.

Flashing¶

Why is my board not flashing/uploading when I try to upload my sketch?¶

To be able to upload the sketch via serial interface, the ESP32 must be in the download mode. The download mode allows you to upload the sketch over the serial port and to get into it, you need to keep the GPIO0 in LOW while a resetting (EN pin) cycle. If you are trying to upload a new sketch and your board is not responding, there are some possible reasons.

Possible fatal error message from the Arduino IDE:

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header

Solution¶

Here are some steps that you can try to:

• Check your USB cable and try a new one.
• Change the USB port.
• Check your power supply.
• In some instances, you must keep GPIO0 LOW during the uploading process via the serial interface.
• Hold down the “BOOT” button in your ESP32 board while uploading/flashing.

In some development boards, you can try adding the reset delay circuit, as described in the Power-on Sequence section on the ESP32 Hardware Design Guidelines in order to get into the download mode automatically.

Hardware¶

Why is my computer not detecting my board?¶

If your board is not being detected after connecting to the USB, you can try to:

Solution¶

• Check if the USB driver is missing. — USB Driver Download Link
• Check your USB cable and try a new one.
• Change the USB port.
• Check your power supply.
• Check if the board is damaged or defective.

Wi-Fi¶

Why does the board not connect to WEP/WPA-“encrypted” Wi-Fi?¶

Please note that WEP/WPA has significant security vulnerabilities and its use is strongly discouraged. The support may therefore be removed in the future. Please migrate to WPA2 or newer.

Solution¶

Nevertheless, it may be necessary to connect to insecure networks. To do this, the security requirement of the ESP32 must be lowered to an insecure level by using:

WiFi.setMinSecurity(WIFI_AUTH_WEP); // Lower min security to WEP. // or WiFi.setMinSecurity(WIFI_AUTH_WPA_PSK); // Lower min security to WPA. 

Why does the board not connect to WPA3-encrypted Wi-Fi?¶

WPA3 support is resource intensive and may not be compiled into the used SDK.

Solution¶

Sample code to check SDK WPA3 support at compile time:

#ifndef CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE #warning "No WPA3 support." #endif 

© Copyright 2022, Espressif. Revision 7a376846 .

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Missing Option to configure python executable path #949

Missing Option to configure python executable path #949

conclusion: declined Will not be worked on topic: code Related to content of the project itself type: enhancement Proposed improvement

Comments

Describe the request

Right now, Arduino IDE 2 doesn’t have an option where you can tell it where the python executable is. By default it looks for python, but on newer OSX versions python doesn’t exist and/or isn’t supported anymore (for example you can’t install it with homebrew).

It would be very nice if the IDE would have the option to set the python executable path, and also support python3.

Describe the current behavior

When you try to compile a sketch you get an error that the python executable is missing.
If you do a softlink at OS level, from python3 to python it will ask for command line developer tools and even if that’s installed it will still not work.

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Ошибка «exec: «python»: исполняемый файл не найден в $ PATH. Ошибка компиляции для платы AI Thinker ESP32-CAM». в Arduino IDE 1.8.12

Я пытаюсь загрузить скетч на плату ESP32-CAM с помощью Arduino IDE 1.8.12 и получаю сообщение об ошибке:

exec: "python": executable file not found in $PATH Error compiling for board AI Thinker ESP32-CAM. 

Когда я набираю python в консоли, он открывает python:

$ python Python 2.7.17 (default, Nov 7 2019, 10:07:09) [GCC 7.4.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> KeyboardInterrupt >>> 

Кроме того, python находится в одном из каталогов, на которые ссылается PATH:

$ which python /usr/bin/python $ echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin 

Я добавил дополнительный URL-адрес со ссылкой на платы ESP32 на веб-сайте Espressif:

Arduino IDE > File > Preferences > Settings > Additional Boards Manager URLs: > https://dl.espressif.com/dl/package_esp32_index.json 

Затем я добавил библиотеки для всех плат ESP32:

Arduino IDE > Tools > Board > Boards Manager > esp32 version 1.0.4 

(Я пробовал с версией 1.0.3, ничего не изменилось. )

Я выбрал свою плату в интерфейсе:

Arduino IDE > Tools > Board > AI Tinker ESP32-CAM 

Я предоставил все разрешения для USB-порта:

sudo chmod a+rwx /dev/ttyUSB0 ls -la /dev/ttyUSB0 crwxrwxrwx 1 root dialout 188, 0 Mar 4 21:25 /dev/ttyUSB0 

Я получаю одну и ту же ошибку для любого примера скетча и для любой платы ESP32.

Есть идеи, как это можно исправить?

2 ответа

Хорошо, я смог решить проблему. Используемая мной среда разработки Arduino IDE была установлена из Центра программного обеспечения Ubuntu. Я удалил его.

Затем я переустановил Arduino IDE, загрузив ее с веб-сайта www.arduino.cc и выполнив ручную установку в /opt. Теперь все работает отлично.

Хорошо, что вы решили проблему. Вы можете пометить свой ответ как правильный, чтобы другие увидели, что проблема решена., @chrisl

Это была проблема со старой оснасткой Arduino IDE в Ubuntu. Вы можете легко исправить это, установив новую привязку arduino :

Затем добавьте своего пользователя в группу dailout :

sudo usermod -a -G dialout $USER 

После этого перезагрузите устройство и откройте Arduino IDE.

Установка дополнительных библиотек

Снэп Arduino IDE запускается внутри песочницы из соображений безопасности и стабильности. Это означает, что он не может получить доступ к библиотекам Python на вашем устройстве. Snap объединяет Python 3 и библиотеку serial . Если вам нужны какие-либо другие зависимости Python, вы можете установить их внутри песочницы с помощью команды arduino.pip .

Примечание: не используйте sudo для этой команды

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python.exe»: file does not exist #5881

python.exe»: file does not exist #5881

Comments

Basic Infos

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• I have filled out all fields below.

Platform

• Hardware: [ESP12]
• Core Version: [2.6.0-dev-nightly+20190315]
• Development Env: [Arduino IDE 1.8.8]
• Operating System: [Windows]

Settings in IDE

• Module: [LOLIN(Wemos) D1 mini r2]
• Flash Size: [4MB/1MB]
• lwip Variant: [|v2 Lower Memory]
• CPU Frequency: [80Mhz]
• Upload Using: [SERIAL]
• Upload Speed: [921600]

Problem Description

Building any sketch I get the error:
«C:\\Users\\Peter\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\2.6.0-dev-nightly+20190315/tools/python/python.exe»: file does not exist

The file python.exe is not in the tools directory within 2.6.0-dev. it is in the directory
C:\Users\Peter\AppData\Local\Arduino15\packages\esp8266\tools\python

My build steps from Cygwin on Windows 10:

1. clone https://github.com/esp8266/Arduino.git
2. cd esp8266/package
3. ./build_boards_manager_package.sh
4. cp package_esp8266com_index.json from versions/2.6.0-dev. to versions/package_esp8266com_index.json
5. setup the boardmanager URL in the Arduino-IDE to http://localhost:8000/versions/package_esp8266com_index.json
6. start a local http-server to delever the package to the Arduino-IDE
7. start the boardmanager from Arduino tools-menu and download the esp8266 version 2.6.0-dev.

One note: to build step 3, there is jq.exe in version 1.6 necessary

The text was updated successfully, but these errors were encountered:

Ah, thanks for trying this out. So, in summary, python.exe location is busted when installed using a packaged JSON file. That was my worry as well.

It should just require adjusting to the «proper» Arduino macros inside the boards.txt. I’ll look at it this weekend and see what I can find.

@earlephilhower Just to let you know, if I move the content of 2.6.0-dev-. \tools\python\3.7.2-post1\* to 2.6.0-dev-. \tools\python\ then everything works fine.

the path to a tool installed in Arduino IDE is runtime.tools..path . the variable is provided by IDE (arduino builder to be exact). is the tool’s folder name in Arduino15\packages\esp8266\tools

Fixes esp8266#5881 The path to python.exe on Windows needs to change depending on whether it is installed via the boards manager or GIT (similar to the compiler paths). Adjust accordingly.

I need to make a fake Python package for Linux as well. Arduino complains if a tool is missing:

 Tool python is not available for your operating system. java.lang.RuntimeException: java.lang.Exception: Tool python is not available for your operating system. at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onInstallPressed$2(ContributionManagerUI.java:175) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.Exception: Tool python is not available for your operating system. at cc.arduino.contributions.packages.ContributionInstaller.install(ContributionInstaller.java:85) at cc.arduino.contributions.packages.ui.ContributionManagerUI.lambda$onInstallPressed$2(ContributionManagerUI.java:172) . 1 more 

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