Retrieved from
<https://patch-diff.githubusercontent.com/raw/jbenet/go-context/pull/3.patch>.

From a55d3832cfe7bb061123c7e90ed3c6195d8ce890 Mon Sep 17 00:00:00 2001
From: Prudhvi Surapaneni <p@supr.io>
Date: Wed, 13 Mar 2019 16:29:55 -0500
Subject: [PATCH] No-longer necessary to import context package

---
 dag/dagctx.go        |  3 +--
 dag/dagctx_test.go   |  3 +--
 frac/fracctx.go      |  3 +--
 frac/fracctx_test.go | 12 +++++++-----
 io/ctxio.go          |  3 +--
 io/ctxio_test.go     |  3 +--
 6 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/dag/dagctx.go b/dag/dagctx.go
index 521390b..17a9090 100644
--- a/dag/dagctx.go
+++ b/dag/dagctx.go
@@ -1,10 +1,9 @@
 package ctxext
 
 import (
+	"context"
 	"sync"
 	"time"
-
-	context "golang.org/x/net/context"
 )
 
 // WithParents returns a Context that listens to all given
diff --git a/dag/dagctx_test.go b/dag/dagctx_test.go
index 30a27e2..8692f54 100644
--- a/dag/dagctx_test.go
+++ b/dag/dagctx_test.go
@@ -1,11 +1,10 @@
 package ctxext
 
 import (
+	"context"
 	"math/rand"
 	"testing"
 	"time"
-
-	context "golang.org/x/net/context"
 )
 
 func TestWithParentsSingle(t *testing.T) {
diff --git a/frac/fracctx.go b/frac/fracctx.go
index 60938c0..d1ee94a 100644
--- a/frac/fracctx.go
+++ b/frac/fracctx.go
@@ -2,9 +2,8 @@
 package ctxext
 
 import (
+	"context"
 	"time"
-
-	context "golang.org/x/net/context"
 )
 
 // WithDeadlineFraction returns a Context with a fraction of the
diff --git a/frac/fracctx_test.go b/frac/fracctx_test.go
index c6dd10d..8de81be 100644
--- a/frac/fracctx_test.go
+++ b/frac/fracctx_test.go
@@ -1,11 +1,10 @@
 package ctxext
 
 import (
+	"context"
 	"os"
 	"testing"
 	"time"
-
-	context "golang.org/x/net/context"
 )
 
 // this test is on the context tool itself, not our stuff. it's for sanity on ours.
@@ -14,7 +13,8 @@ func TestDeadline(t *testing.T) {
 		t.Skip("timeouts don't work reliably on travis")
 	}
 
-	ctx, _ := context.WithTimeout(context.Background(), 5*time.Millisecond)
+	ctx, cncl := context.WithTimeout(context.Background(), 5*time.Millisecond)
+	defer cncl()
 
 	select {
 	case <-ctx.Done():
@@ -46,8 +46,10 @@ func TestDeadlineFractionHalf(t *testing.T) {
 		t.Skip("timeouts don't work reliably on travis")
 	}
 
-	ctx1, _ := context.WithTimeout(context.Background(), 10*time.Millisecond)
-	ctx2, _ := WithDeadlineFraction(ctx1, 0.5)
+	ctx1, cncl1 := context.WithTimeout(context.Background(), 10*time.Millisecond)
+	defer cncl1()
+	ctx2, cncl2 := WithDeadlineFraction(ctx1, 0.5)
+	defer cncl2()
 
 	select {
 	case <-ctx1.Done():
diff --git a/io/ctxio.go b/io/ctxio.go
index b4f2454..b27689b 100644
--- a/io/ctxio.go
+++ b/io/ctxio.go
@@ -11,9 +11,8 @@
 package ctxio
 
 import (
+	"context"
 	"io"
-
-	context "golang.org/x/net/context"
 )
 
 type ioret struct {
diff --git a/io/ctxio_test.go b/io/ctxio_test.go
index 884e090..bc4a0e9 100644
--- a/io/ctxio_test.go
+++ b/io/ctxio_test.go
@@ -2,11 +2,10 @@ package ctxio
 
 import (
 	"bytes"
+	"context"
 	"io"
 	"testing"
 	"time"
-
-	context "golang.org/x/net/context"
 )
 
 func TestReader(t *testing.T) {