Unable to open x server error import c importimagecommand 359

Hi Olga,

The problem is that your shell is interpreting miso as a bash script instead of Python code, which is why you get all these crazy errors. How did you install MISO? When Python packages are installed with distribute easy_install or pip, the scripts of a package (like miso, compare_miso, etc.) get placed in a bin directory, which automatically has in its header the Python path in the first line. The Python package manager automatically makes these executable, and so there’s no need for changing permissions if the package is installed correctly. The scripts are typically put in ~/.local/bin/ and then all you need to do is have that path in your PATH environment variable so that you can get miso from the command line.

For example, if you go into the MISO directory and do:

$ easy_install --user -U .

or the equivalent pip command, scripts like miso will get placed in the bin directory I mentioned. If you do:

$ head -n 2 ~/.local/bin/miso

You should see that the first line has the path to your Python installation. What happens on your cluster when you do this?

$ python /home/yeo-lab/software/bin/miso --help

The errors you got are definitely the result of a mixup where miso gets executed as a bash script. My guess is that you’re not running the miso that’s in the bin directory (i.e. the installed miso script) but rather invoking bash on the github repository file miso which triggers these errors.

Update 1: I just saw that you had your installation commands in there. First, you don’t need the build command. Can you try easy_install in your directory or simply python setup.py install --prefix=~/ (or prefix to wherever your Python packages are)? Also, what is the output of this?

$ head /Library/Frameworks/EPD64.framework/Versions/Current/bin/miso

and this?

$ /Library/Frameworks/EPD64.framework/Versions/Current/bin/miso --help
$ python /Library/Frameworks/EPD64.framework/Versions/Current/bin/miso --help

I strongly recommend using distribute‘s easy_install or pip with local installation options to install your packages in ~/.local so that you have full control over which version is being used. Typing python setup.py install usually leads to Python path issues and related disasters.

Update 2: I just tried installing it on my Mac laptop with easy_install and this is what I get:

$ uname -a
Darwin 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386
$ git clone git@github.com:yarden/MISO
$ cd MISO/
$ sudo easy_install .

Then when I type miso, I get:

$ miso
MISO (Mixture of Isoforms model)
Probabilistic analysis of RNA-Seq data for detecting differential isoforms
Use --help argument to view options.

Using MISO settings file: /Library/Frameworks/EPD64.framework/Versions/7.0/lib/python2.7/site-packages/misopy-0.5.0-py2.7-macosx-10.5-x86_64.egg/misopy/settings/miso_settings.txt
$ which miso
/Library/Frameworks/EPD64.framework/Versions/Current/bin/miso

When it’s installed correctly, here’s what the executable miso script should look like:

$ which miso
/Library/Frameworks/EPD64.framework/Versions/Current/bin/miso
$ head /Library/Frameworks/EPD64.framework/Versions/Current/bin/miso
#!/Library/Frameworks/EPD64.framework/Versions/Current/bin/python
# EASY-INSTALL-SCRIPT: 'misopy==0.5.0','miso'
__requires__ = 'misopy==0.5.0'
import pkg_resources
pkg_resources.run_script('misopy==0.5.0', 'miso')

As you can see, easy_install made sure the miso file in ...Current/bin/miso is executable (I didn’t use chmod or anything like that) and it prepended the right #! path to the location of the Python on my machine.

I used sudo easy_install . since I have root access on my laptop obviously but in a cluster environment you should use --user for local installation into ~/.local.

miso error: «Import: unable to open X server `’ @ import.c/ImportImageCommand/359» . #51

Comments

olgabot commented Jul 16, 2013

Hello,
Using miso on our cluster, I get:

I thought it might have been some incorrect compilation on our server-side, so I installed it in an environment where I have total control (my laptop), but I get the same error:

This is the exact same error as I get when I run just plain miso , without sudo . I tried sudo because I thought the error with can’t read /var/mail/misopy.parse_csv might be because of permissions.

Please let me know how I may correctly install MISO.

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

yarden commented Jul 16, 2013

The problem is that your shell is interpreting miso as a bash script instead of Python code, which is why you get all these crazy errors. How did you install MISO? When Python packages are installed with distribute easy_install or pip , the scripts of a package (like miso , compare_miso , etc.) get placed in a bin directory, which automatically has in its header the Python path in the first line. The Python package manager automatically makes these executable, and so there’s no need for changing permissions if the package is installed correctly. The scripts are typically put in

/.local/bin/ and then all you need to do is have that path in your PATH environment variable so that you can get miso from the command line.

For example, if you go into the MISO directory and do:

or the equivalent pip command, scripts like miso will get placed in the bin directory I mentioned. If you do:

You should see that the first line has the path to your Python installation. What happens on your cluster when you do this?

The errors you got are definitely the result of a mixup where miso gets executed as a bash script. My guess is that you’re not running the miso that’s in the bin directory (i.e. the installed miso script) but rather invoking bash on the github repository file miso which triggers these errors.

Update 1: I just saw that you had your installation commands in there. First, you don’t need the build command. Can you try easy_install in your directory or simply python setup.py install —prefix=

/ (or prefix to wherever your Python packages are)? Also, what is the output of this?

I strongly recommend using distribute ‘s easy_install or pip with local installation options to install your packages in

/.local so that you have full control over which version is being used. Typing python setup.py install usually leads to Python path issues and related disasters.

Update 2: I just tried installing it on my Mac laptop with easy_install and this is what I get:

Then when I type miso , I get:

When it’s installed correctly, here’s what the executable miso script should look like:

As you can see, easy_install made sure the miso file in . Current/bin/miso is executable (I didn’t use chmod or anything like that) and it prepended the right #! path to the location of the Python on my machine.

I used sudo easy_install . since I have root access on my laptop obviously but in a cluster environment you should use —user for local installation into

Источник

Как получить скриншот с удаленной машины по ssh?

Захожу по ssh на удаленную машину. Иксы проброшены, иксовые приложения запускаются. По умолчанию дисплей — компьютер, с которого я захожу:

Вот так не получается:

Вот так тоже не получается:

Команды не работают ни от рута (от которого запущены иксы), ни от залогиненного в иксах пользователя, ни от другого пользователя.

Полное указание DISPLAY тоже не помогает:

При этом на удаленном компьютере (двухмониторная конфигурация) есть и :0.0, и :0.1.

Т.е. на удаленной машине иксы запущены? Тогда xhost +

И как я мышкой щелкну в удаленных иксах?

а если :0 попробовать?

Т.е. Вы его по ssh вводите? Так не получится. xhost должен выполнить процесс, уже имеющий доступ к иксам.

А дистанционно, что — никак нельзя?

А если иксы не пробрасывать? У меня нормально работало. И да, cat /var/log/Xorg.0.log|grep ‘>Screen’

Не знаю, я обычно записываю это в автозагрузку иксов/kdm/gdm и т.д. и перезапускаю их.

ваша целевая машинка случайно не пользует нвидаму?

ps auwex | grep DISPLAY кажет и DISPLAY=:0.0, и DISPLAY=:0.1, так что все ОК.

nVidia video card, with proprietary drivers.

Естественно. Как бы я еще двухмониторную конфигурацию сделал по-человечески?

man import, щёлкать необязательно.

Ну, с этого стоило начинать.
Когда-то имел проблемы с получением дисплея на аналогичной конфигурации.
Сейчас ничего толкового не скажу, я не дома и еду в отпуск (ура!), но если по памяти — они городят какой-то подводный костыль, который даёт 3й дисплей, а 0.0 и 0.1 вроде как и есть, но вроде как и нету.
Мрачно говорить об этом без деталей, но может сам накопаешь в эту сторону.

Источник

Arch Linux

You are not logged in.

#1 2018-07-30 04:03:25

[SOLVED] How to Programatically Capture Screenshot in a Linux Service

I’m looking for a way to take a screenshot in a Linux service. This ImageMagick command works fine if I run it explicitly:

But if I run it as a command called from a Linux service, I get this error:

I also tried prepending «export DISPLAY=:0.0» but that didn’t help.

Last edited by tony5429 (2018-07-31 14:29:23)

#2 2018-07-30 06:31:49

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

What is a «Linux service»? Do you mean a systemd service? If so, are you running the command from a system-wide service? If so, consider using a user service instead.

I also tried prepending «export DISPLAY=:0.0» but that didn’t help.

Where have you prepended that? Have you verified that the DISPLAY value for your session really is :0.0 (and not just :0)?

Online

#3 2018-07-30 13:31:30

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

Ah, yes I meant a systemd service — thanks. Unfortunately it does need to be a system-wide service.

I had prepended it like this:

Ah, you’re right; the DISPLAY value for my session is actually :0, but I just tried that and it also didn’t work.

I think from reading this page that I need to do something with /home/bob/.xprofile and /home/bob/.Xauthority, but I’m not sure what exactly. This is for a project writing an open-source alternative to the software at accountable2you.com.

#4 2018-07-30 13:49:58

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

Unfortunately it does need to be a system-wide service.

Why? The X session runs under your user, so why shouldn’t the screenshot-capturing service run as your user? This seems needlessly complicated.

I had prepended it like this:

Yes, but where? If you put that line for ExecStart, this won’t work, because systemd doesn’t interpret the line like a shell (you’d need to wrap it into a sh -c ‘. ‘ wrapper). But more generally, check the COMMAND LINES section in systemd.service(5) for how to set environment variables in service files.

I think from reading this page that I need to do something with /home/bob/.xprofile and /home/bob/.Xauthority, but I’m not sure what exactly.

Online

#5 2018-07-30 14:04:07

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

what if X does not run? the service executes the script, but cannot find DISPLAY.

why don’t you simply run the capture, inside an infinite loop checking for X to be running (if script doesn’t stop when desktop stops ( ), from kind-of-autostart ?

#6 2018-07-31 14:29:08

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

@ayekat: OK, I read more about user services in the link you provided and realised that I’d been mistaken and that that really is a good solution for this effort. Switched it to a user service and that solved the problem. Thanks for your patience with me! Though irrelevant now, thanks for the other tips/info too. I’m using C and system() to wrap my shell commands.

#7 2018-07-31 14:34:56

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

I think it’s also worth checking out the suggestion made by N_BaH. If you launch the X session in some way (e.g. with xinit), you could also just start your screenshot program in there, no?

I’m using C and system() to wrap my shell commands.

I. I don’t think I want to know what exactly you’re doing there.

Online

#8 2018-07-31 14:40:45

Re: [SOLVED] How to Programatically Capture Screenshot in a Linux Service

I’m using C and system() to wrap my shell commands.

I. I don’t think I want to know what exactly you’re doing there.

It’s like seeing someone who was grotesquely mutilated in some industrial accident. You know you’re not supposed to stare, but you just can’t help it. You know you shouldn’t ask about it, but you just feel you need to know.

In any case, it’s disturbing.

«UNIX is simple and coherent. » — Dennis Ritchie, «GNU’s Not UNIX» — Richard Stallman

Источник

linux — Imagemagick: PHP-скрипт, выдающий «импорт: невозможно открыть X-сервер»

Я пытаюсь захватить мое текущее окно, используя ImageMagick с использованием PHP-скрипта, но в ответ получил ошибку. Я искал его в stackoverflow, но никто из них не решил мою проблему. Я установил imagemagick на свою машину Ubuntu 14.04. Следующая команда дает мне правильный вывод.

У меня есть это в image.php

Я выполнил это из терминала

И я получил желаемый ответ (экран был захвачен, и файл получил имя screenshot.jpg)

Затем я попытался получить доступ к вышеупомянутому php-скрипту с помощью моего браузера. перерабатывать Команда отлично работает, но для Импортировать comamnd ничего не происходит, я попытался проверить мой журнал apache, и это дает мне следующую ошибку

Что мне здесь не хватает?

Это вопрос разрешения?

Решение

Если вы пытаетесь сделать это только для тестов и / или исследований:

1 — Проверьте, может ли пользователь apache запускать команды

2 — Проверьте, установлен ли и настроен ли X11, установите отображение env var. DISPLAY =: 0 например

3 — настроить команду импорта

/ usr / bin / import -window корень

в / usr / bin / import -window apache_user

или / usr / bin / import -window ваш_пользователь

Если вы пытаетесь создать веб-сайт, к которому будут обращаться несколько клиентов с разными операционными системами, ваш код не будет работать. Вам нужно будет сделать это, используя только PHP-код, потому что, очевидно, машина Windows не имеет команд convert и import.

Источник

`miso` error: «Import: unable to open X server `’ @ import.c/ImportImageCommand/359» . about miso HOT 1 OPEN

Comments (1)

The problem is that your shell is interpreting miso as a bash script instead of Python code, which is why you get all these crazy errors. How did you install MISO? When Python packages are installed with distribute easy_install or pip , the scripts of a package (like miso , compare_miso , etc.) get placed in a bin directory, which automatically has in its header the Python path in the first line. The Python package manager automatically makes these executable, and so there’s no need for changing permissions if the package is installed correctly. The scripts are typically put in

/.local/bin/ and then all you need to do is have that path in your PATH environment variable so that you can get miso from the command line.

For example, if you go into the MISO directory and do:

or the equivalent pip command, scripts like miso will get placed in the bin directory I mentioned. If you do:

You should see that the first line has the path to your Python installation. What happens on your cluster when you do this?

The errors you got are definitely the result of a mixup where miso gets executed as a bash script. My guess is that you’re not running the miso that’s in the bin directory (i.e. the installed miso script) but rather invoking bash on the github repository file miso which triggers these errors.

Update 1: I just saw that you had your installation commands in there. First, you don’t need the build command. Can you try easy_install in your directory or simply python setup.py install —prefix=

/ (or prefix to wherever your Python packages are)? Also, what is the output of this?

I strongly recommend using distribute ‘s easy_install or pip with local installation options to install your packages in

/.local so that you have full control over which version is being used. Typing python setup.py install usually leads to Python path issues and related disasters.

Update 2: I just tried installing it on my Mac laptop with easy_install and this is what I get:

Then when I type miso , I get:

When it’s installed correctly, here’s what the executable miso script should look like:

As you can see, easy_install made sure the miso file in . Current/bin/miso is executable (I didn’t use chmod or anything like that) and it prepended the right #! path to the location of the Python on my machine.

I used sudo easy_install . since I have root access on my laptop obviously but in a cluster environment you should use —user for local installation into

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Источник

import: unable to open X server `' @ error/import.c/ImportImageCommand/366.
from: can't read /var/mail/datetime
./mixcloud.py: line 3: syntax error near unexpected token `('
./mixcloud.py: line 3: `now = datetime.now()'

import requests
from datetime import datetime,date,timedelta

now = datetime.now()

3 ответа

Лучший ответ

$ python
Python 2.7.5+ (default, Sep 19 2013, 13:48:49) 
[GCC 4.8.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>> from datetime import datetime,date,timedelta
>>> 
>>> now = datetime.now()
>>> 

$ python mixcloud.py

#!/usr/bin/env python

$ ./mixcloud.py

--entrypoint /usr/bin/python