diff --git a/pure.zsh b/pure.zsh
index 12ed97c..2e29028 100644
--- a/pure.zsh
+++ b/pure.zsh
@@ -199,19 +199,21 @@ prompt_pure_precmd() {
 
 	# Check if we should display the virtual env (psvar[20]).
 	psvar[20]=
-	# Check if a Conda environment is active and display its name.
-	if [[ -n $CONDA_DEFAULT_ENV ]]; then
-		psvar[20]="${CONDA_DEFAULT_ENV//[$'\t\r\n']}"
-	fi
-	# When VIRTUAL_ENV_DISABLE_PROMPT is empty, it was unset by the user and
-	# Pure should take back control.
-	if [[ -n $VIRTUAL_ENV ]] && [[ -z $VIRTUAL_ENV_DISABLE_PROMPT || $VIRTUAL_ENV_DISABLE_PROMPT = 20 ]]; then
-		if [[ -n $VIRTUAL_ENV_PROMPT ]]; then
-			psvar[20]="${VIRTUAL_ENV_PROMPT}"
-		else
-			psvar[20]="${VIRTUAL_ENV:t}"
+	if zstyle -T ":prompt:pure:environment:virtualenv" show; then
+		# Check if a Conda environment is active and display its name.
+		if [[ -n $CONDA_DEFAULT_ENV ]]; then
+			psvar[20]="${CONDA_DEFAULT_ENV//[$'\t\r\n']}"
+		fi
+		# When VIRTUAL_ENV_DISABLE_PROMPT is empty, it was unset by the user and
+		# Pure should take back control.
+		if [[ -n $VIRTUAL_ENV ]] && [[ -z $VIRTUAL_ENV_DISABLE_PROMPT || $VIRTUAL_ENV_DISABLE_PROMPT = 20 ]]; then
+			if [[ -n $VIRTUAL_ENV_PROMPT ]]; then
+				psvar[20]="${VIRTUAL_ENV_PROMPT}"
+			else
+				psvar[20]="${VIRTUAL_ENV:t}"
+			fi
+			export VIRTUAL_ENV_DISABLE_PROMPT=20
 		fi
-		export VIRTUAL_ENV_DISABLE_PROMPT=20
 	fi
 
 	# Nix package manager integration. If used from within 'nix shell' - shell name is shown like so:
diff --git a/readme.md b/readme.md
index 61d2af2..9827303 100644
--- a/readme.md
+++ b/readme.md
@@ -113,6 +113,10 @@ You can change the symbol shown before the Node.js version (default `⬢`) with:
 
 `zstyle :prompt:pure:environment:nix-shell show no`
 
+Virtualenv integration shows the current Python virtualenv or Conda environment name. It is enabled by default, you can disable it with:
+
+`zstyle :prompt:pure:environment:virtualenv show no`
+
 Git integration is enabled by default, you can disable it with:
 
 `zstyle :prompt:pure:git show no`
diff --git a/tests/virtualenv.zsh b/tests/virtualenv.zsh
new file mode 100644
index 0000000..c8ca421
--- /dev/null
+++ b/tests/virtualenv.zsh
@@ -0,0 +1,92 @@
+#!/usr/bin/env zsh
+
+source "${0:A:h}/test-helper.zsh"
+
+main() {
+	# prompt_pure_precmd references many env vars that may be unset.
+	set +u
+
+	zmodload zsh/datetime
+	zmodload zsh/zutil
+
+	prompt_pure_set_title() {
+		:
+	}
+
+	prompt_pure_set_colors() {
+		:
+	}
+
+	prompt_pure_check_cmd_exec_time() {
+		:
+	}
+
+	prompt_pure_async_tasks() {
+		:
+	}
+
+	typeset -gA prompt_pure_vcs_info=(pwd '' top '')
+	typeset -gA prompt_pure_state=(prompt '❯')
+
+	# Conda env should be shown by default.
+	CONDA_DEFAULT_ENV=myenv
+	prompt_pure_precmd
+	assert_equal "myenv" "$psvar[20]" "conda env should be shown by default"
+
+	# Conda env should be hidden when virtualenv style is off.
+	zstyle ':prompt:pure:environment:virtualenv' show no
+	prompt_pure_precmd
+	assert_empty "$psvar[20]" "conda env should be hidden when virtualenv show is no"
+
+	# Virtualenv should be hidden when virtualenv style is off.
+	unset CONDA_DEFAULT_ENV
+	VIRTUAL_ENV=/path/to/venvs/myvenv
+	VIRTUAL_ENV_DISABLE_PROMPT=20
+	prompt_pure_precmd
+	assert_empty "$psvar[20]" "virtualenv should be hidden when virtualenv show is no"
+
+	# VIRTUAL_ENV_DISABLE_PROMPT should not be set by precmd when virtualenv show is off.
+	unset VIRTUAL_ENV_DISABLE_PROMPT
+	prompt_pure_precmd
+	assert_empty "${VIRTUAL_ENV_DISABLE_PROMPT-}" "VIRTUAL_ENV_DISABLE_PROMPT should not be set when virtualenv show is no"
+
+	# Re-enable and verify virtualenv is shown.
+	zstyle -d ':prompt:pure:environment:virtualenv' show
+	prompt_pure_precmd
+	assert_equal "myvenv" "$psvar[20]" "virtualenv should be shown when style is re-enabled"
+
+	# Virtualenv with VIRTUAL_ENV_DISABLE_PROMPT unset (user handed control back).
+	unset VIRTUAL_ENV_DISABLE_PROMPT
+	prompt_pure_precmd
+	assert_equal "myvenv" "$psvar[20]" "virtualenv should be shown when VIRTUAL_ENV_DISABLE_PROMPT is unset"
+
+	# Conda env should be overridden by virtualenv when both are active.
+	CONDA_DEFAULT_ENV=condaenv
+	prompt_pure_precmd
+	assert_equal "myvenv" "$psvar[20]" "virtualenv should take precedence over conda"
+
+	# VIRTUAL_ENV_PROMPT should be preferred over VIRTUAL_ENV basename.
+	VIRTUAL_ENV_PROMPT="custom-prompt"
+	prompt_pure_precmd
+	assert_equal "custom-prompt" "$psvar[20]" "VIRTUAL_ENV_PROMPT should be preferred"
+
+	# Third-party VIRTUAL_ENV_DISABLE_PROMPT should be respected (Pure should not override).
+	unset CONDA_DEFAULT_ENV VIRTUAL_ENV_PROMPT
+	VIRTUAL_ENV_DISABLE_PROMPT=1
+	prompt_pure_precmd
+	assert_empty "$psvar[20]" "third-party VIRTUAL_ENV_DISABLE_PROMPT should be respected"
+
+	# Nix-shell should still work when virtualenv style is off.
+	unset VIRTUAL_ENV VIRTUAL_ENV_DISABLE_PROMPT
+	zstyle ':prompt:pure:environment:virtualenv' show no
+	IN_NIX_SHELL=pure
+	name=my-nix-shell
+	prompt_pure_precmd
+	assert_equal "my-nix-shell" "$psvar[20]" "nix-shell should be independent of virtualenv style"
+	unset IN_NIX_SHELL name
+	zstyle -d ':prompt:pure:environment:virtualenv' show
+
+	print -- "virtualenv tests passed"
+}
+
+main "$@"