- How to fix Ubuntu /usr/bin/env: ‘python’: No such file or directory
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- Privacy Overview
- Resolving “usr/bin/env: ‘python’ No such file or directory” Error
- Causes of the “usr/bin/env: ‘python’ No such file or directory” Error
- Resolving the “usr/bin/env: ‘python’ No such file or directory” error
- Installing Python
- Updating the PATH Environment Variable
- Windows
- Linux
- macOS
- Using the Correct Version of Python
- Correcting the Shebang Line
- Tensorflow build /usr/bin/env ‘python’ no such file or directory
- FAQs
- Conclusion
- Как запустить скрипт для внешней проверки в Zabbix?
- usr bin env python no such file or directory ( Solved)
- What causes usr bin env python no such file or directory Error?
- Solution for the usr bin env python no such file or directory
- Solution 1: Install python
- Solution 2: Create a link to the python
- Solution 3: Install the minimal version of python
- Conclusion
How to fix Ubuntu /usr/bin/env: ‘python’: No such file or directory
for some scripts that want to be executed using python where only python3 is available ( python2 has long been deprecated).
In order to fix the issue, install the python-is-python3 package which makes python and alias of python3 :
sudo apt -y install python-is-python3
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Resolving “usr/bin/env: ‘python’ No such file or directory” Error
As a Python developer, you may encounter the error message “usr/bin/env: ‘python’ No such file or directory” when trying to run a Python script from the command line. This error message indicates that the Python interpreter can’t be found in the default PATH environment variable. In this article, we will explore the causes of this Error and how to resolve it.
Causes of the “usr/bin/env: ‘python’ No such file or directory” Error
There are several reasons why you may encounter this Error:
- Python is not present on the system
- Python is installed but not in the PATH environment variable
- The wrong version of Python is being used
- Incorrect shebang line in the Python script
Resolving the “usr/bin/env: ‘python’ No such file or directory” error
Installing Python
If Python is not installed on your system, you can install it by following the instructions for your operating system. For Windows, you can download the Python installer from the official Python website and run it to install Python. For Linux and macOS, you can use the package manager to install Python.
Updating the PATH Environment Variable
If Python is installed but not in the PATH environment variable, you can add it to the PATH. To do this, you will need to modify the PATH environment variable. The process of updating the PATH environment variable is different for each operating system, so you will need to follow the instructions specific to your operating system.
Windows
- Open the Start menu and search for “Environment Variables”
- Click on “Edit the system environment variables”
- Click on the “Environment Variables” button
- Under “System Variables”, scroll down and find the “Path” variable
- Click on the “Path” variable and then click on the “Edit” button
- Click on the “New” button and add the path to the Python executable, for example: C:\Python38\
- Click OK to close all open windows
Linux
- Open the terminal and edit the .bashrc file: nano ~/.bashrc
- Add the following line at the end of the file, replacing /path/to/python with the path to your Python executable:
export PATH=$PATH:/path/to/python
- Save the file and exit the editor
- Run the following command to reload the .bashrc file: source ~/.bashrc
macOS
- Open the terminal and edit the .bash_profile file: nano ~/.bash_profile
- Add the following line at the end of the file, replacing /path/to/python with the path to your Python executable:
export PATH=$PATH:/path/to/python
- Save the file and exit the editor
- Run the following command to reload the .bash_profile file: source ~/.bash_profile .
Using the Correct Version of Python
If you have multiple versions of Python installed on your system, you may be using the wrong version of Python. To resolve this issue, you can specify the path to the correct version of Python in the shebang line of your Python script.
Correcting the Shebang Line
The shebang line is the first line of a Python script and specifies the interpreter that should be used to run the script. If the shebang line is incorrect, you may encounter the error “usr/bin/env: ‘python’ No such file or directory”. To resolve this issue, you can correct the shebang line in your Python script to ensure that it points to the correct version of Python.
Here’s an example of a correct shebang line for Python 3:
And here’s an example of a correct shebang line for Python 2:
It’s important to note that the path to the Python interpreter may be different on your system, so you may need to adjust the shebang line accordingly.
Here’s an example of a complete Python script with a correct shebang line:
#!/usr/bin/env python3 print("Hello, World!")
Once you have corrected the shebang line, you should be able to run the script without encountering the “usr/bin/env: ‘python’ No such file or directory” error.
Tensorflow build /usr/bin/env ‘python’ no such file or directory
This error message suggests that the python executable could not be found in the environment’s /usr/bin directory.
One potential reason for this Error is that the specified version of Python is not present on the system or is not available in the environment’s PATH. To resolve this issue, you should check the version of Python that is present on your system and make sure that it is the correct version that you want to use with TensorFlow .
If you have multiple versions of Python installed, you can specify the desired version using the python command followed by the version number.
python3.7 -m pip install tensorflow
Alternatively, you can also create a virtual environment using virtualenv or conda and install the desired version of Python and TensorFlow in that environment.
If the issue persists, you can also try installing TensorFlow using the pip command without specifying the Python version:
This will install the latest version of TensorFlow that is compatible with the version of Python that is currently active in your environment.
FAQs
Yes, you can update the PATH environment variable for a specific user by editing their shell profile file (e.g. ~/.bashrc on Linux or ~/.bash_profile on macOS) instead of the system-wide environment variables.
Conclusion
The error “usr/bin/env: ‘python’ No such file or directory” can be caused by several different issues, including Python not being installed on the system, the PATH environment variable not being set correctly, the wrong version of Python being used, or the shebang line in the Python script being incorrect. By understanding the causes of this Error, you can take the necessary steps to resolve it and ensure that your Python scripts run correctly.
Как запустить скрипт для внешней проверки в Zabbix?
Если я верно понимаю , то внешняя проверка запускается от пользователя «zabbix» и скрипт должен быть .sh .
Как правильно все это дело заставить работать ?
если sudo -u zabbix /usr/lib/zabbix/externalscripts/pyandex.py, то в ответ
sudo: unable to execute /usr/lib/zabbix/externalscripts/pyandex.py: Permission denied
chmod +x /usr/lib/zabbix/externalscripts/pyandex.py
проверить, что запускается
sudo -u zabbix /usr/lib/zabbix/externalscripts/pyandex.py
если нет, убедиться, что в первой строке скрипта есть питоний shebang
appliance@zabbix:~$ sudo -u zabbix /usr/lib/zabbix/externalscripts/pyandex.py
/usr/lib/zabbix/externalscripts/pyandex.py: 6: /usr/lib/zabbix/externalscripts/pyandex.py: import: not found
/usr/lib/zabbix/externalscripts/pyandex.py: 7: /usr/lib/zabbix/externalscripts/pyandex.py: import: not found
/usr/lib/zabbix/externalscripts/pyandex.py: 8: /usr/lib/zabbix/externalscripts/pyandex.py: import: not found
/usr/lib/zabbix/externalscripts/pyandex.py: 9: /usr/lib/zabbix/externalscripts/pyandex.py: from: not found
/usr/lib/zabbix/externalscripts/pyandex.py: 11: /usr/lib/zabbix/externalscripts/pyandex.py: Syntax error: «(» unexpected
#[python] #!/usr/bin/env python import pycurl import pprint import json from io import BytesIO c = pycurl.Curl() data = BytesIO() c.setopt(c.URL,'https://cloud-api.yandex.net:443/v1. ') c.setopt(pycurl.HTTPHEADER, ['Authorization: OAuth AgA. ']) c.setopt(c.WRITEFUNCTION, data.write) c.perform() d = json.loads((data.getvalue()).decode('utf-8')) pprint.pprint((d['total_space']-d["used_space"])/1024/1024/1024) #[/python]
usr bin env python no such file or directory ( Solved)
If you are running python code on Linux or MacOs operating system then you might get the error “/usr/bin/env: ‘python’: No such file or directory”.If yes then this post is for you. In this tutorial, you will learn how to solve this issue differently.
What causes usr bin env python no such file or directory Error?
Suppose you are configuring the python by typing the command “./configure” on your terminal of MacOS or Linx OS then you may get the error like the below.
/usr/bin/env: ‘python’: No such file or directory
To solve this error you have to follow the solutions in the next section.
Solution for the usr bin env python no such file or directory
Solution 1: Install python
The first solution is to install the python package in your system. Open your terminal and type the following command to install it. sudo apt-get update sudo apt-get install python3
Solution 2: Create a link to the python
The second solution is to create a symlink or link to python. This solution will work when python 3. xx is already installed in your system as you have to check where the python is installed.
Now create a symlink for the directory.
sudo ln -s /usr/bin/python3 /usr/bin/python
Now again use the ./configure you will not get the ‘python’: No such file or directory error.
Solution 3: Install the minimal version of python
If the above two solutions do not solve this error then you can follow this solution. Here you have to install the minimal version of python in your system.
Open your terminal and type the command below.
sudo apt-get install python-minimal
Now you will not get the error.
Conclusion
In Linux or macOS operating system you mostly get this python No such file or directory. The general solution for this is to install the python library. If it is not solved then try the other solutions.
If you are unable to solve this error then you can contact us for more solutions.