Update scripts and config

you-n-g · Jul 24, 2024 · dd1f2d9 · dd1f2d9
1 parent 3334ba9
commit dd1f2d9
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Showing 3 changed files with 66 additions and 4 deletions.
diff --git a/language/python/env_interact.py b/language/python/env_interact.py
@@ -0,0 +1,35 @@
+import subprocess
+import os
+
+# Define the shell command as a multi-line string
+shell_command = """
+cat << EOF > .env
+TEST_VAR=123
+EOF
+"""
+
+# Execute the shell command
+
+
+import fire
+class Exp:
+    def run(self):
+        subprocess.run(shell_command, shell=True, check=True)
+
+    def test_env(self):
+        # NOTE:
+        # If you only source the variables
+        # - It will fail;
+        #
+        # You have to use following methods to make it works
+        # 1) source the env
+        #   if [ -f .env ]; then
+        #     # Export each variable in the .env file
+        #     export $(grep -v '^#' .env | xargs)
+        #   fi
+        # 2) use dotenv
+        #   dotenv run -- python app.py
+        print(os.environ["TEST_VAR"])
+
+if __name__ == "__main__":
+    fire.Fire(Exp)
diff --git a/language/python/meta.py b/language/python/meta.py
@@ -72,8 +72,9 @@ def foo(self, x):
 
 
 class MyMeta(type):
-    meta_attr = "meta attribute will become the attribute of class"
-    # But it will not present in __init__, __new__, __call__
+    # FIXME:  it does not work in my Python
+    # meta_attr = "meta attribute will become the attribute of class"
+    # # But it will not present in __init__, __new__, __call__
 
     def __new__(cls, clsname, bases, attrs):
         # MetaClass的new代表创建子类， Class的new代表创建实例

diff --git a/language/python/yield.py b/language/python/yield.py
@@ -10,7 +10,7 @@ def test_yield_from():
     res = yield from test_yield()
     # return value of `yield from` & `yield` are very different.
     # The yield will return the value
-    print(res)
+    print("test_yield_from get the return value:", res)
     return res  # This value can't be returned
 
 
@@ -21,6 +21,11 @@ def test_send():
         print("yield ret:", x)
 
 
+def test_yield_and_ret():
+    yield "yield value"
+    return "return value"
+
+
 if __name__ == "__main__":
 
     print("=================== yield from ===================")
@@ -48,4 +53,25 @@ def test_send():
 
     # 总结
     # - next 和 send 除了输入之外本质一样，都是让generate跑到下一个yield.
-    # - send是先把值输入到上一次yield的返回值，所以第一次调用send必须输入None
+    # - send是先把值输入到上一次yield的位置并且作为返回值，所以第一次调用send必须输入None(因为没有上一次yield)
+
+
+    print("------------------- test yield and return -------------------")
+    # Compare yield and return
+    gen = test_yield_and_ret()
+    # TODO: how to get "yield value" and "return value"?
+    print("test", next(gen))
+    try:
+        # Get the "yield value"
+        yield_value = next(gen)
+        print("Yielded value:", yield_value)
+
+        # Continue to the end of the generator to get the return value
+        next(gen)
+    except StopIteration as e:
+        # The return value is stored in the exception
+        return_value = e.value
+        print("Returned value:", return_value)
+
+    # TODO::
+    # How can I set the state  of the generator (e.g. continue to run from a specific line, locals() ...)