⬆️ Update base64, opener requirement

Cargo.toml

@@ -11,8 +11,8 @@ readme = "README.md"
 keywords = ["evcxr", "jupyter", "visualization", "plot", "vega"]
 
 [dependencies]
-base64 = "^0.13"
-opener = "^0.4"
+base64 = "^0.22"
+opener = "^0.7"
 anyhow = "^1.0"
 
 #arrow = {version = "0.13.0", optional = true} # nightly

src/lib.rs

@@ -21,6 +21,7 @@ mod show_ndarray;
 mod show_image;
 
 use anyhow::Error;
+use base64::prelude::*;
 use std::path::Path;
 use std::path::PathBuf;
 use std::time::SystemTime;
@@ -147,7 +148,7 @@ pub fn show_text_in_jupyter<M: AsRef<str>, S: AsRef<str>>(mime_type: M, text: S)
 /// ```
 // TODO replace by evcxr_runtime ?
 pub fn show_bytes_in_jupyter<S: AsRef<str>>(mime_type: S, buffer: &[u8]) {
-    show_text_in_jupyter(mime_type, base64::encode(buffer))
+    show_text_in_jupyter(mime_type, BASE64_STANDARD.encode(buffer))
 }
 
 /// Display the content of a local file.

src/show_image.rs

@@ -12,7 +12,7 @@
 use crate::ContentInfo;
 use crate::Showable;
 use anyhow::{anyhow, Error};
-use base64;
+use base64::prelude::*;
 use image;
 use std::ops::Deref;
 
@@ -46,7 +46,7 @@ where
             <P as image::Pixel>::COLOR_TYPE,
         )?;
         Ok(ContentInfo {
-            content: base64::encode(&buffer),
+            content: BASE64_STANDARD.encode(&buffer),
             mime_type: "image/png;base64".into(),
         })
     }