I have a string like this: row = '000000002|APPLE |237277309|BOWNE GOOD (LIST)       |WEGRZYN, ED                   |21925142|5021 NIMTZ PKWY|A|B|C|D|'   How can I put them each 3 '|' of them into a dictionary like: {'first':'000000002','second':'APPLE','third':'237277309'}  {'first':'BOWNE GOOD (LIST)','second':'WEGRZYN, ED','third':'21925142'}      code: from collections import Counter import re counts = Counter('|')  vowel_count = 0 for letter in counts:    if letter in row:       vowel_count += 1       if vowel_count == 3:               row.slice
I have a list of arbitrary length, and I need to split it up into equal size chunks and operate on it. There are some obvious ways to do this, like keeping a counter and two lists, and when the second list fills up, add it to the first list and empty the second list for the next round of data, but this is potentially extremely expensive.  I was wondering if anyone had a good solution to this for lists of any length, e.g. using generators.  I was looking for something useful in itertools but I couldn't find anything obviously useful. Might've missed it, though.  Related question:
If a run the watch command containing an alias, it will not expand the alias. I have tried both with single quote and double quotes, in fact given the following alias:  # alias ll alias ll='ls -l --color=tty'   The following command will fail  # watch ll sh: ll: command not found   Shouldn't command line expansion work in this case? Determine if Term has Grandparent/Great-Grandparent "OpenID 2.0 for Google Accounts is going away"; will this affect Stack Exchange? Why the interior of $\mathbb{Q}$ in $\mathbb{R}$ is empty? How do I delete Windows after an Ubuntu install? I downloaded Ubuntu 12.04 LTS to my Dell Dimension 4600 with Windows XP installed.  I now have a neat dual-boot system, but I want to get rid of the XP OS and keep Ubuntu as my only OS.  How do I do this? Why is the field inside a conducting shell zero when only external charges are present? My first issue was when I tried to apt-get update or apt-get upgrade. On upgrade I get the following error:  You might want to run 'apt-get -f install' to correct these. The following packages have unmet dependencies: linux-image-server : Depends: linux-image-3.2.0-27-generic but it is not installed E: Unmet dependencies. Try using -f.   I tried running apt-get install -f and this was the output(after saying yes on prompt)  (Reading database ... 186183 files and directories currently installed.) Unpacking linux-image-3.2.0-27-generic (from .../linux-image-3.2.0-27-generic_3.2.0-27.43_amd64.deb) ... Done. dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-27-generic_3.2.0-27.43_amd64.deb (--unpack):  failed in write on buffer copy for backend dpkg-deb during `./boot/System.map-3.2.0-27-generic': No space left on device  No apport report written because the error message indicates a disk full error                                                                           dpkg-deb:    error: subprocess paste was killed by signal (Broken pipe) Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-27-generic   /boot/vmlinuz-3.2.0-27-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-27-generic /boot/vmlinuz-3.2.0-27-generic Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.2.0-27-generic_3.2.0-27.43_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1)   I tried running apt-get autoremove and it gives me the same error as apt-get upgrade.  When I run df, I get this for /boot:  /dev/sda1                    233191     230297         0 100% /boot   So, I read elsewhere that I should try to purge old kernels. I checked for what kernels I had with:  $ dpkg -l linux-image-\* | grep ^ii ii  linux-image-2.6.38-13-server  2.6.38-13.52  Linux kernel image for version 2.6.38 on x86_64 ii  linux-image-3.0.0-13-server   3.0.0-13.22   Linux kernel image for version 3.0.0  on x86_64 ii  linux-image-3.0.0-14-server   3.0.0-14.23   Linux kernel image for version 3.0.0  on x86_64 ii  linux-image-3.0.0-15-server   3.0.0-15.26   Linux kernel image for version 3.0.0  on x86_64 ii  linux-image-3.0.0-16-server   3.0.0-16.29   Linux kernel image for version 3.0.0  on x86_64 ii  linux-image-3.0.0-17-server   3.0.0-17.30   Linux kernel image for version 3.0.0  on x86_64 ii  linux-image-3.2.0-24-generic  3.2.0-24.39   Linux kernel image for version 3.2.0  on 64 bit x86 SMP ii  linux-image-3.2.0-25-generic  3.2.0-25.40   Linux kernel image for version 3.2.0  on 64 bit x86 SMP ii  linux-image-3.2.0-26-generic  3.2.0-26.41   Linux kernel image for version 3.2.0  on 64 bit x86 SMP   When I try to remove the oldest with this:  $ sudo apt-get purge linux-image-2.6.38-13-server Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: linux-image-server : Depends: linux-image-3.2.0-27-generic but it is not going to be     installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).   How can I free up or extend boot without messing up my installation? Im creating a community user from an Apex code. When our internal users (non-admins) run the code they are getting following error. (This was working fine when we test the feature in sandbox)     SObjectException: Field is not writeable: User.ProfileId   The code is       //Grab Community User Profile     Profile p = [Select Id, Name from Profile where Name = :COMMUNITY_PROFILE LIMIT 1];       User PortalUser = new User();          PortalUser.UserName = Con.Email+'-POC';         PortalUser.ContactId = Con.Id;         PortalUser.ProfileId = p.id;         PortalUser.Email = Con.Email;         PortalUser.EmailEncodingKey = 'UTF-8';         PortalUser.FirstName = Con.FirstName;         PortalUser.LastName = Con.LastName;         PortalUser.TimeZoneSidKey = 'America/Los_Angeles';         PortalUser.LocaleSidKey = 'en_US';         PortalUser.LanguageLocaleKey = 'en_US';          if (Con.LastName.length() &gt;= 8){             PortalUser.Alias = Con.LastName.substring(0, 7);             }else{             PortalUser.Alias = Con.LastName;         }             SObjToInsert.add(PortalUser); Find the asymptotic tight bound for $T(n) = 4T(n/2) + n^{2}\log n$ Find the asymptotic tight bound in  $$ T(n) = 4T\left(\frac{n}{2}\right) + n^{2}\log n. $$  where $ \log n= \log _{2}n $ and $T(1) = 1$.  I should solve this using all three common methods: iteration, master theorem and substitution.  It is highly likely that this kind of recurrence equation will be in my test in two days. Thank you very much in advance! Show that the Euler characteristic of a chain complex is equal to the Euler characteristic of its homology What is the difference between these two ways to calculate average velocity? Average velocity:  $$v_{\rm avg,1}=\frac{v_{\rm final}+v_{\rm initial}}{2}$$   and average velocity:   $$v_{\rm avg,2} =\frac{\rm total\;displacement}{\rm time \;taken}=\frac{\Delta x}{\Delta t} $$  What is the difference between them and when do we use them? What programming languages can I use in Blender? What version of Python does Blender use and are other languages available? Also, does Python work the same in Blender as when you write console applications or when working with Pygame or are there any differences? If so, what are the main differences? Can we re-request features that were declined a sufficient while ago? Where do the X-Men get all their money/funding? Charles Xavier's father was a "wealthy nuclear scientist". In the beginning, Charles personally bankrolled the Xavier Institute/X-Men using his family's money.   This included, but was not limited to things like upgrading the mansion to house the training levels, providing a helicopter (the predecessor to the Blackbird jet), providing and replacing uniforms, providing health care for injured students, and rebuilding/repairing the mansion and parts of the Danger Room  repeatedly.  These have all been recurring costs. The mansion has been damaged or outright destroyed a ridiculous number of times. X-Men can't get into a fight without someone's uniform getting damaged.   In one of the more recent stories (I believe it was an early issue of Wolverine &amp; The X-Men), a comment is made about how the X-Men are pretty much bankrupt.  Where has all this money come from over all these years?   Xavier may have had a large war chest to start with, but no other income has ever been mentioned to my knowledge. Student's tuition could account for some of it, but there's no way that's going to fund everything. Difference between knockout View Models declared as object literals vs functions I was given a MySQL database file that I need to restore as a database on my Windows Server 2008 machine.  I tried using MySQL Administrator, but I got the following error:     The selected file was generated by   mysqldump and cannot be restored by   this application.   How do I get this working? remove divs and spans from view output In my page.tpl.php I'm doing this to display one of my view:  print views_embed_view('teaserview', 'default');   That gives me the following html output:  &lt;span thmr="thmr_10"&gt; &lt;div class="view view-teaserview view-id-teaserview view-display-id-default view-dom-id-e051ba535ce9aac6cd9a0d564b3dbb29 contextual-links-region"&gt;     &lt;div class="contextual-links-wrapper"&gt;         &lt;span thmr="thmr_16"&gt;         &lt;ul class="contextual-links"&gt;             &lt;li class="views-ui-edit first last"&gt;&lt;span thmr="thmr_17"&gt;&lt;a href="/kbi/admin/structure/views/view/teaserview/edit/default?destination=node/3"&gt;Edit view&lt;/a&gt;&lt;/span&gt;&lt;/li&gt;         &lt;/ul&gt;         &lt;/span&gt;     &lt;/div&gt;     &lt;div class="view-content"&gt;         &lt;span thmr="thmr_15"&gt;         &lt;div class="views-row views-row-1 views-row-odd views-row-first views-row-last"&gt;             &lt;span thmr="thmr_14"&gt;             &lt;span thmr="thmr_11"&gt;&lt;span thmr="thmr_12"&gt;&lt;span thmr="thmr_13"&gt;&lt;img src="http://127.0.0.1/kbi/sites/default/files/teaser_2.jpg" width="1029" height="308" alt="" /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;         &lt;/div&gt;         &lt;/span&gt;     &lt;/div&gt; &lt;/div&gt; &lt;/span&gt;   But the only thing that I really need is  &lt;img src="http://127.0.0.1/kbi/sites/default/files/teaser_2.jpg" width="1029" height="308" alt="" /&gt;   Is there a possibility to modify the views_embed_view call so that I get only the needed data?   There would be the possibility to modify all the views .tpl.php files but I hope there's an easier way to do this.   I also read about the semantic views module but I didn't understand how to configure my view with it so that i get only the needed markup as output. it didn't seem to have any effect. Profile page "activity" tab is broken Where are Upstart log messages on Ubuntu 13.X? Do we know of any living forms on Earth that could continue to live on Mars?