comments

Author: szabgab

sites/en/pages/enable-ansible-passwordless-sudo.txt

@@ -5,7 +5,7 @@
 =books ansible
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -312,3 +312,42 @@ root:!:17596:0:99999:7:::
 
 Having passwordless access is great for automation, but you need to be aware of the security implications we discussed above.
 
+<h2>Comments</h2>
+
+This enables passwordless sudo for all accounts for all commands.
+
+Surely it would be better to follow the recommendation in the /etc/sudoers file and use the lineinfile module to create a file, say, /etc/sudoers.d/ansible containing a line something like (untested)
+
+foo ALL = (root:root) NOPASSWD: ALL
+
+
+---
+
+I tried this, using 'ansible' instead of 'foo', but Ansible would still says it required a password. I had also made the 'ansible' user usable by *my* username without password, by using:
+
+- name: Get the username running the deploy
+local_action: command whoami
+register: username
+become: false
+
+- name: Allow using this user without password
+lineinfile:
+dest: /etc/sudoers.d/ansible
+state: present
+regexp: "^{{ username.stdout }}"
+line: "{{ username.stdout }} ALL=(ansible) NOPASSWD: ALL"
+validate: 'visudo -cf %s'
+
+Works on the command line, not in Ansible...
+
+<hr>
+
+%sudo ALL=(ALL:ALL) NOPASSWD: ALL
+
+should be
+
+%sudo ALL=(ALL:ALL) NOPASSWD:ALL
+
+If you're not careful, that extra space just after `NOPASSWD:` will ruin your system like it did mine (even when using visudo which was unexpected)
+
+

sites/en/pages/exercise-count-words-in-a-file.txt

@@ -4,7 +4,7 @@
 =status show
 =books ruby, python, javascript, php
 =author szabgab
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 

sites/en/pages/generating-code-coverage-report-gnu-gcc-gcov-lcov.txt

@@ -4,7 +4,7 @@
 =status draft
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 =abstract end
@@ -22,6 +22,3 @@ lcov --remove all.info '/usr/*' '3rdparty/*' 'app/tests/*' --rc lcov_branch_cove
 genhtml selected.info --rc lcov_branch_coverage=1 --output-directory out
 </code>
 
-
-<code>
-</code>

sites/en/pages/groovy-types.txt

@@ -5,7 +5,7 @@
 =books groovy
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -75,4 +75,8 @@ but we can assign any type of value to it and it will be automatically converted
 
 See the <a href="http://groovy-lang.org/syntax.html">Groovy syntax</a> for more details.
 
+<h2>Comments</h2>
+
+boolean b = ""; returns false; however not b = "" even with prior declaration and assignment of b as boolean b = false per se within groovysh shell command prompt
+
 

sites/en/pages/hello-world-with-flask-and-python.txt

@@ -5,7 +5,7 @@
 =books python, flask
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -149,12 +149,9 @@ FLASK_APP=hello_world flask run --host 0.0.0.0
 FLASK_APP=hello_world FLASK_DEBUG=1 flask run --host 0.0.0.0 --port 3000
 </code>
 
+<h2>Comments</h2>
 
-
-
-
-
-
-
+how to resolve this error? GET /favicon.ico 404 NOT
+FOUND
 
 

sites/en/pages/how-to-insert-a-dictionary-in-another-dictionary-in-python.txt

@@ -5,7 +5,7 @@
 =books python
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -71,4 +71,56 @@ The resulting printout shows that both <hl>team_b</hl>, and the internal part of
 in this case we assign a reference to the dictionary. So when we assigned <hl>team_b</hl> to <hl>team_a["b"]</hl>
 we have not copied the content of <hl>team_b</hl>, we just connected the existing dictionary to another place where it can be accessed from.
 
+<h2>Comments</h2>
+
+I'm trying to add a dictionary to another dictionary primary{{secondary_key : value}, {secondary_key : value}}. When I try to assign a value like this "dict[primary_key][secondary_key] = value" I get error IndexError: list assignment index out of range.
+
+---
+
+That means you declared either the external object or the internal object as list and not as dictionary.
+
+<hr>
+
+i have dictionary
+{key:value}
+{key:value}
+{key:value}
+.......
+i wanted to make it into a single key dictionary like
+[{'key':value} , {'key:value} , {'key':value}......]
+what should i do
+
+----
+You say "I have a dictionary" and then you show 3 dictionaries. Then in the result you show a list with 3 dictionaries in it. If you have a dictionary, could you print it out and paste the result here?
+
+----
+
+say i have three dictionaries as follows in a text file
+{'America': 47.0, India': 1.0, 'England': 1.0}
+{'America': 7.0, 'India': 9.0, 'England': 2.0}
+{'America': 2.0, 'India': 2.0, 'England': 3.0}
+
+i need an output as
+
+[{'America': 47.0, India': 1.0, 'England': 1.0},
+{'America': 7.0, 'India': 9.0, 'England': 2.0},
+{'America': 2.0, 'India': 2.0, 'England': 3.0}]
+
+----
+
+Have you written any code already? Show that!
+
+---
+
+with open("abc.txt") as f:
+for line in f:
+
+numbers_str = line.split()
+
+numbers_float = [float(x) for x in numbers_str]
+keys=['America','India','England']
+zip(numbers_float,keys)
+results= dict(zip(keys,numbers_float))
+print results.items()
+
 

sites/en/pages/introduction-to-handlebars-javascript-templating-system.txt

@@ -5,7 +5,7 @@
 =books javascript, handlebars
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -104,4 +104,8 @@ document.getElementById('result').innerHTML = html;
 That's it about the basics of Handlebars. If you'd like to learn more, you can check out the
 documentation on the web site of <a href="http://handlebarsjs.com/">Handlebars</a>
 
+<h2>Comments</h2>
+
+Hello!! Your article is excellent it has provided me with good information. I need your help in solving one problem I am using handlebarjs for templating. I have three templates in one single file and a singal json object (ie array of objects within array of objects) depending on the condition in one of my helper function i am trying to nest a template into parent template. I can share the piece of code with you.
+
 

sites/en/pages/iterate-over-character-of-a-string-in-ruby.txt

@@ -1,11 +1,11 @@
 =title Iterate over characters of a string in Ruby
 =timestamp 2015-02-11T15:30:01
-=indexes split, each_char 
+=indexes split, each_char
 =status show
 =books ruby
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -76,4 +76,30 @@ e
 f
 </code>
 
+<h2>Comments</h2>
+
+so would it be accurate to write:
+
+%w { 1 2 3 4 }.each do |num|
+s3_file "/usr/local/tomcat7-7/part[num].tif"
+remote_path "part[num].tif"
+bucket "perftest-data"
+aws_access_key_id "XXXXXXX"
+aws_secret_access_key "ZZZZZZZZ"
+owner "root"
+group "root"
+mode "0644"
+action :create
+end
+
+<hr>
+
+You can also do it with a simple iteration loop, leveraging the fact that string objects are stored as arrays of characters:
+
+input = 'abcdef'
+ 
+input.length.times { |i| 
+   puts input[i] 
+}
+
 

sites/en/pages/javascript-hello-world-change-the-dom.txt

@@ -5,7 +5,7 @@
 =books javascript
 =author szabgab
 =archive 1
-=comments_disqus_enable 1
+=comments_disqus_enable 0
 
 =abstract start
 
@@ -49,3 +49,10 @@ and that's why they are used usually) with an id <b>display</b>.
 
 <try file="examples/js/set_innerhtml.html">
 
+<h2>Comments</h2>
+
+Putting the JavaScript code after the HTML is loaded does not always work. I ran into this after making a HTML, CSS, JavaScript app using PHP desktop.
+
+For whatever reason, the HTML was not completely loaded and there was a need for a 400 millisecond delay before executing the JavaScript code to fill the DIV tags.
+
+Just keep this in mind should you run into that scenario and your JavaScript can't find the HTML tags after the page is loaded.