Download __TOP__ Python Using Wget
Tula Difeo
download(url) can again be unicode on Python 2.7 -wget/issues/83.1 (2015-10-18)
- it saves unknown files under download.wget filename -wget/issues/6
- it prints unicode chars to Windows console
- it downloads unicode urls with Python 3
- it can download and save unicode filenames -wget/issues/7
- it again can download without -o option
- it shows command line help
- -o option allows to select output file/directory
There is also a nice Python module named wget that is pretty easy to use. Keep in mind that the package has not been updated since 2015 and has not implemented a number of important features, so it may be better to use other methods. It depends entirely on your use case. For simple downloading, this module is the ticket. If you need to do more, there are other solutions out there.
I had to do something like this on a version of linux that didn't have the right options compiled into wget. This example is for downloading the memory analysis tool 'guppy'. I'm not sure if it's important or not, but I kept the target file's name the same as the url target name...
For the rest of your current shell session every mention of python3in the commands you type in or the commands that programs you runexecute for you mean $HOME/py-351/bin/python3 (if that file exists).
You should now be able to restart your shell and, if all goes well,run the python3 command without specifying the full path$HOME/py-351/bin/python3. If it does not work after starting a newshell (e.g. starting a new terminal or logging in again) try lookingat the output of echo $PATH. If it does not have new value at thestart your shell is probably using one of the other files I listedabove. Try making the same changes to each of them until it does work.
This is very easy and allows you to have multiple Python versions without messing with system python interpreter (which is used by a lot of Ubuntu own programs). On my dev machine I have literally dozens of different Python versions from 2.4 to 3.2 living happily in /opt.
Three package names to choose from: python, python-minimal, python-all. Default is minimal. These words are just flags to the Ubuntu repositories to include extra stuff or not. To see exactly what subpackages are and aren't included, drill down on the subpackages of:
For anyone who is interested, I wrote a more verbose step-by-step article on how to install Python 3.3.2 locally from source on Ubuntu 12.04, mostly based on reading @sergey's excellent answer above: -python3-locally-from-source
The script should be copied and saved into a text editor as, for example, build_python, and made executable (chmod u+x build_python) and then can be run with two parameters, where the first parameter must always be the Python branch, and the second parameter must always be the Python version.
Thank you for your attention, my way of learning is to destroy systems !!!
I am trying to run a small program in python that executed from ssh using $ python xxx.py plays a flac file in Volumio. Very elementary everything but it worked correctly until I tried to install the new version of Volumio. It gave me a corrupt system error, I went back to factory installation and installed the new version.
When I want to run the program, python tells me that the wget module is missing, hence I try to install it.
The question would be why if it is installed I can not invoke it?
If you still can not display the ESGF login page after these steps AND you are using a Mac, please contact support. Some institutions, e.g. NASA, preinstall the ESGF certificate and this will have to be removed in order to be trusted. You may also which to switch to FireFox or Chrome.
The basic unit in ESGF is the dataset. Datasets are collections of individual files.Some datasets contain files that represent different variables. Some datasets are restricted to one variable.Others, like CMIP5, contain many datasets with multiple variables. To search for individual files, save a dataset to your Data Cartand search using the sub-select text box in the Data Cart itself(see tutorial).
The file name wget-############.sh of the downloaded script begins with wget- followed by a time stamp, a number and the extension .sh. The script is a UNIX Shell script and may be edited with a text editor. In this way, you may shorten the list of download files, e.g. if you do not need data for all available periods. Do not change other parts of the script.
If the datasets to be downloaded are unrestricted, run the script with the option -s. No authorization is required. When using this method for download, ensure you are not using additional options, eg., -s and -H should never be combined
Use this option if you know the data to be downloaded is unrestricted. This includes CMIP3-6, E3SM, input- and obs- 4MIPs projects, more coming soon. When using this method for download, ensure you are not using additional options, eg. -s and -H should never be combined.
The option -u is used to repeat the search and find changes in the download file list. In more detail, the Wget script is again generated and compared with the old, locally stored Wget script. New available files are listed as well as new versions of previously downloaded files since the checksum of a replaced file differs from that of the old version. Other changes in the script are also shown. If a modification is detected, the Wget script will be updated and the previous version will be stored at my_wget_script.old.# where # is just a running index. This option needs the UNIX diff program. Data files will not be downloaded.
If a browser window does not appear then you need to run on a system with a local default web browser that can be invoked. (For a remote server you may consider using a virtual desktop such as VNC where a web browser can be displayed.) In the browser window you will be prompted to login to the Globus webapp (with Globus-enabled credentials) and then activate the ESGF endpoint where the requested data resides with your ESGF username and password.
A facet constraint can be negated by using the != operator. For example, model!=CCSM searches for all items that do NOT match the CCSM model. Note that all negative facets are combined in logical AND, for example, model!=CCSM&model!=HadCAM searches for all items that do not match CCSM, and do not match HadCAM.
Download the files as in the previous examples, and organize them in a directory structure such as project/product/institute/time_frequency : -node.jpl.nasa.gov/esg-search/wget?variable=hus&project=obs4MIPs&distrib=false&download_structure=project,product,institute,time_frequency
I'm on Ubuntu 16.04, fully updated. Noticing some really really slow DNS resolution on things like curl/dns, and within python. I've done some searching, but nothing has solved it. I"m trying ot build an app that requires fast response time, but my app performance is getting crushed because of this issue.
I already fixed this once (or at least I thought I did) by turning off ipv6 which made my apt-get way faster, and that seemed to fix everything else for a while too-- but all the sudden, it's back to taking forever to resolve. Not sure what the deal is or if I updated some package and it reset it. wget/curl on a website takes forever to resolve, then all the sudden it does, and bam. I'm on a 100M/100M connection. I should mention that if I force --inet4-only with wget, it's instantatneous, making me think this is a ipv6 resolution thing again but I have verified that ipv6 is off:
The other weird thing is that if I do this within python (using requests library, and specifically, requests.packages.urllib3.connectionpool) it will do the normal 20-ish second stall on the first HTTP GET, but if I do a second one or any one after that, it's blazing fast just like it should be.
Next, head over to the Python 3.10 download page . Here, you will find the latest features of the latest upgrade including the changelog, documentation, and source files for all computing platforms. Download the Gzipped source tarball file using the wget command as shown.
Install a Windows build of Ungoogled Chromium. For this example, use the ones from Woolyss (either 32-bit or 64-bit). There are multiple builds of Chromium available on that page, so look for the "Marmaduke" ungoogled builds and download the appropriate 7-zip archive using the "Archive" link:
Install the Python language bindings for Selenium. Assuming the copy of Python you installed from Step 1 is available from the command line (ex. you added it to your Windows path), simply run python -m pip install selenium to download and install the necessary files.
One can easily install python using various techniques mentioned above in their Linux system. But how to set it as default? so that whenever you enter Python anywhere in the terminal it always executes python3. Here is the simple command from which you can set Python3 as default version.
Open your terminal and enter,
You may already know this, wget has an awesome --mirror option allowing to capture an entire website with all the images, JavaScript, CSS and Fonts it needs. It also fixes all the links to make everything relative, so browsing it locally is possible.
As wget does not offer any option to use custom attributes on a tag (the option --follow-tags is used to specify the HTML tag, you cannot control the attribute itself) we will have to cheat if we want it to download our images.
If using an Ubuntu version older than 22.04, it is necessary to add extrarepositories to meet the minimum required versions for the maindependencies listed above. In that case, download, inspect and executethe Kitware archive script to add the Kitware APT repository to yoursources list.A detailed explanation of kitware-archive.sh can be found herekitware third-party apt repository:
It is easy to run into Python package incompatibilities when installingdependencies at a system or user level. This situation can happen,for example, if working on multiple Zephyr versions or other projectsusing Python on the same machine.
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