optional bz2

Cargo.toml

@@ -27,6 +27,7 @@ jit = ["rustpython-vm/jit"]
 threading = ["rustpython-vm/threading", "rustpython-stdlib/threading"]
 pylib = ["rustpython-vm/pylib"]
 zlib = ["stdlib", "rustpython-stdlib/zlib"]
+bz2 = ["stdlib", "rustpython-stdlib/bz2"]
 ssl = ["rustpython-stdlib/ssl"]
 ssl-vendor = ["rustpython-stdlib/ssl-vendor"]
 

stdlib/Cargo.toml

@@ -41,7 +41,7 @@ unic-ucd-ident     = "0.9.0"
 adler32 = "1.2.0"
 crc32fast = "1.3.2"
 flate2 = "1.0.23"
-bzip2 = "0.4"
+bzip2 = { version = "0.4", optional = true }
 
 num-complex = "0.4.0"
 num-bigint = "0.4.3"
@@ -86,6 +86,7 @@ compiler = ["rustpython-vm/compiler"]
 # parser = ["rustpython-parser", "ast"]
 
 zlib = ["libz-sys", "flate2/zlib"]
+bz2 = ["bzip2"]
 ssl = ["openssl", "openssl-sys", "foreign-types-shared"]
 ssl-vendor = ["ssl", "openssl/vendored", "openssl-probe"]
 

stdlib/src/lib.rs

@@ -25,7 +25,7 @@ mod random;
 mod statistics;
 // TODO: maybe make this an extension module, if we ever get those
 // mod re;
-#[cfg(not(any(target_arch = "wasm32")))]
+#[cfg(feature = "bz2")]
 mod bz2;
 #[cfg(not(target_arch = "wasm32"))]
 pub mod socket;
@@ -117,12 +117,15 @@ pub fn get_module_inits() -> impl Iterator<Item = (Cow<'static, str>, StdlibInit
             "select" => select::make_module,
             "_socket" => socket::make_module,
             "faulthandler" => faulthandler::make_module,
-            "_bz2" => bz2::make_module,
         }
         #[cfg(feature = "ssl")]
         {
             "_ssl" => ssl::make_module,
         }
+        #[cfg(feature = "bz2")]
+        {
+            "_bz2" => bz2::make_module,
+        }
         // Unix-only
         #[cfg(unix)]
         {