SerhiiKozachenko

Product Name and Size,Category,Sub Category,Product,Price (C),Item number,Product Description - Fabric; Features; Printing Method,Width     (in inches),Height    (in inches),Pixel Dimension (Width),Pixel Dimension (Height),Optimal Resolution,Package Type,CS Length/IN,CS Width/IN,CS Height/IN,CS Weight/LBS,CBM,Care Instructions
White Crewneck Fleece Sweatshirt Front and Back Print - S,DTG Apparel,Front and Back Print,Crewneck Fleece Sweatshirt,$28.31,32285,White Bella Canvas 3945 Crewneck Fleece Sweatshirt; FRONT AND BACK PRINT; Direct-to-Garmet,See Template,,,,,Mailer Bag,13.00,10.00,1.00,0.73,0.07523148148,"Machine Wash, Cold Water, Gentle Cycle, Do Not Bleach, Tumble Dry Low, Do Not Iron"
White Crewneck Fleece Sweatshirt Front and Back Print - M,DTG Apparel,Front and Back Print,Crewneck Fleece Sweatshirt,$28.31,32284,White Bella Canvas 3945 Crewneck Fleece Sweatshirt; FRONT AND BACK PRINT; Direct-to-Garmet,See Template,,,,,Mailer Bag,16.00,10.00,1.00,0.85,0.09259259259,"Machine Wash, Cold Water, Gentle Cycl

SerhiiKozachenko

Product Name and Size,Category,Sub Category,Product,Price (C),Item number,Product Description - Fabric; Features; Printing Method,Width     (in inches),Height    (in inches),Pixel Dimension (Width),Pixel Dimension (Height),Optimal Resolution,Package Type,CS Length/IN,CS Width/IN,CS Height/IN,CS Weight/LBS,CBM,Care Instructions
"Spun Polyester Blown & Closed Pillow - 14"" x 14""",Home Decor,Pillows,Throw Pillows,$7.88,PRT-GEN-SD4GPW,Spun Polyester; Blown & Closed; Polyester Fill; Double-Sided Print; Dye Sublimation,31.00,15.50,4650,2325,150,Mailer Bag,15.00,15.00,4.35,0.75,0.56640625,Spot Clean / Dry Clean Only
"Spun Polyester Blown & Closed Pillow - 14"" x 10""",Home Decor,Pillows,Throw Pillows,$6.45,PRT-GEN-SHSG104,Spun Polyester; Blown & Closed; Polyester Fill; Double-Sided Print; Dye Sublimation,15.50,23.00,2325,3450,150,Mailer Bag,15.00,15.00,4.35,0.65,0.56640625,Spot Clean / Dry Clean Only
"Spun Polyester Blown & Closed Pillow - 16"" x 16""",Home Decor,Pillows,Throw Pillows,$9.74,PRT-GEN-SLG16S ,Spun Pol

SerhiiKozachenko

Product Name and Size,Category,Sub Category,Product,Price (C),Item number,Product Description - Fabric; Features; Printing Method,Width     (in inches),Height    (in inches),Pixel Dimension (Width),Pixel Dimension (Height),Optimal Resolution,Package Type,CS Length/IN,CS Width/IN,CS Height/IN,CS Weight/LBS,CBM,Care Instructions
"Spun Polyester Blown & Closed Pillow - 14"" x 14""",Home Decor,Pillows,Throw Pillows,$7.88,PRT-GEN-SD4GPW,Spun Polyester; Blown & Closed; Polyester Fill; Double-Sided Print; Dye Sublimation,31.00,15.50,4650,2325,150,Mailer Bag,15.00,15.00,4.35,0.75,0.56640625,Spot Clean / Dry Clean Only
"Spun Polyester Blown & Closed Pillow - 14"" x 10""",Home Decor,Pillows,Throw Pillows,$6.45,PRT-GEN-SHSG104,Spun Polyester; Blown & Closed; Polyester Fill; Double-Sided Print; Dye Sublimation,15.50,23.00,2325,3450,150,Mailer Bag,15.00,15.00,4.35,0.65,0.56640625,Spot Clean / Dry Clean Only
"Spun Polyester Blown & Closed Pillow - 16"" x 16""",Home Decor,Pillows,Throw Pillows,$9.74,PRT-GEN-SLG16S ,Spun Pol

SerhiiKozachenko

;; This stuff is pretty useful in many contexts.

 ...
 (:import (com.google.common.cache CacheBuilder CacheLoader))
 ...
  
  

quantataraxia.core> (with (-> (CacheBuilder/newBuilder)
                              (.weakKeys)

SerhiiKozachenko

(let [f (future
          (try
            (Thread/sleep 10000)
            (catch Throwable e
              (println e)
              (println "isInterrupted:" (.isInterrupted (Thread/currentThread)))
              (println "isAlive:" (.isAlive (Thread/currentThread)))
              (println "interrupted:" (Thread/interrupted)))))]
  (Thread/sleep 500)
  (future-cancel f)

SerhiiKozachenko

;; I keep forgetting how to do this stuff for some reason, so here goes:

(let [c (async/chan 1 (map #(* % 2)))]
  (async/go
    (loop []
      (when-let [e (async/<! c)]
        (println "async/go, e:" e)
        (recur))))
  (async/>!! c 1)
  (async/>!! c 2))

SerhiiKozachenko

;; www.Quanto.ga
;;
;; cp/upmap is from https://github.com/TheClimateCorporation/claypoole


quantataraxia.core> (do
                      (println "MAP:")
                      (println (time (doall (map (fn [x] (Thread/sleep x) x)
                                                  (range 500 50 -9)))))
                      (println "PMAP:")

SerhiiKozachenko

;; Performance of with-local-vars vs. atom vs. volatile vs. unsynchronized-mutable field.


(definterface IOObject
  (setVal [new-val])
  (getVal [])
  (oswap [f])
  (oswap [f x])
  (oswap [f x y])
  (oswap [f x y z]))

SerhiiKozachenko

PostgreSQL is Enough

• Simplify: move code into database functions
• Just Use Postgres for Everything
• PostgreSQL is the worlds’ best database
• Postgres is eating the database world
• Hacker News discussion

Background and Cron Jobs

SerhiiKozachenko

Videos http://www.pyvideo.org/