ivermac

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

ivermac

From a stack overflow link

Before line break

subkeyword = Session.query(
    Subkeyword.subkeyword_id, Subkeyword.subkeyword_word
).filter_by(
    subkeyword_company_id=self.e_company_id
).filter_by(
 subkeyword_word=subkeyword_word

ivermac

I noticed the following warning being triggered when launching the terminal in my Visual Studio app a couple of times but I had ignored it:

➜ nvm is not compatible with the npm config "prefix" option: currently set to "/usr/local" 
  Run `npm config delete prefix` or `nvm use --delete-prefix v8.0.0 --silent` to unset it.

I got the exact same warning when launching tmux locally and that caught my attention. I use nvm locally to manage node versions so initially I thought that was the problem. A quick search on google and I found out that a couple of people had experienced the same problem. I found my solution here in a github

ivermac

python 2.7

Use urlencode from urllib for encoding and parse_qs from urlparse for decoding. urlencode takes a dict while parse_qs takes a string. I learned from this awesome link.

python 3.6

Use urlencode from urllib.parse for encoding and parse_qs from urllib.parse for decoding. urlencode takes a dict while parse_qs takes a string.

compatibility in both python 2.7 and 3.6 com

Install future package version 0.16.0. Import urlencode and parse_qs from future.moves.urllib.parse.

ivermac

This worked in both python 2.7 and 3.6.4

sum([[1, 2, 3], [4, 5, 6]], [])

ivermac

I use brew's postgresql service and after cold reboot on the mac I was using, I got the following when I tried to access psql on the command line:

psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

I got my fix from here. In a nutshell, the postmaster.pid file already exists and has to be removed. Removing file that file fixed it for me i.e.

rm -f /usr/local/var/postgres/postmaster.pid

You might also want to to checkout the postgres log file (tail -n 10 /usr/local/var/log/postgres.log) for any errors and bugs.

ivermac

(defn get-query-params-str [query-params-map & [query-param-str]]
  "Converts a hash-map to a query param string containing the keys and values
   in the hash-map
   Note: this function assumes the values have already been url-encoded"
  (let [query-param-str (str query-param-str)
        query-param-str-blank? (string/blank? query-param-str)
        key (first (keys query-params-map))
        query-param-key (name (or key ""))
        query-param-val (and key (key query-params-map))]

ivermac

I included a non-Clojurescript directory in the checkout of a clojurescript project and started getting the following error:

Compiling ClojureScript...
WARNING: no :cljsbuild entry found in project definition.
--------------------------------------------------------------------------------
WARNING: your :cljsbuild configuration is in a deprecated format.  It has been
automatically converted it to the new format, which will be printed below.
It is recommended that you update your :cljsbuild configuration ASAP.
--------------------------------------------------------------------------------
:cljsbuild

ivermac

If you are using redis and wanted to check how many open connections are there at the moment, use the client list command in your redis terminal.

127.0.0.1:6379> client list
id=936 addr=127.0.0.1:61277 fd=8 name= age=3 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=32768 obl=0 oll=0 omem=0 events=r cmd=client

This is a powerful debugging tool especially when you have an app that's using redis and seems to be opening connections without closing them, meaning you run out of memory in your redis host server.

Before getting to this stage, a colleague in the SRE team had used the following command to identify the redis problem

ivermac

Inspired by this url. From this page, the input.rc file is used to map the keyboard to specific situations.

"\e[A": history-search-backward
"\e[B": history-search-forward
"\e[C": forward-char
"\e[D": backward-char