From a08265da097e92d09b97bed5ff14f8ac923b9cac Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:15:02 -0600
Subject: [PATCH 1/6] Update changelog

---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3063dbc..d175892 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,9 +7,11 @@
 #### Functionality improvements
 
 * Convert `by` arg `_by` to allow naming columns `by` in `.mutate()`/`.summarize()`
+* Convert `.to_pandas()`/`.to_polars()` to `.as_pandas()`/`.as_polars()`
 
 #### New functions
 
+* `as_tibble()`
 * `where()`
 
 ## v0.2.19

From 249c810c28b2740a1db7f6c93fa30fb642201b1b Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:22:46 -0600
Subject: [PATCH 2/6] Create `as_tibble()`

---
 tidypolars/tibble_df.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tidypolars/tibble_df.py b/tidypolars/tibble_df.py
index ba8c19b..8ff9224 100644
--- a/tidypolars/tibble_df.py
+++ b/tidypolars/tibble_df.py
@@ -15,6 +15,7 @@
 from operator import not_
 
 __all__ = [
+    "as_tibble",
     "tibble",
     "desc",
     "from_pandas", "from_polars"
@@ -959,6 +960,15 @@ def desc(x):
 class DescCol(pl.Expr):
     pass
 
+def as_tibble(x):
+    if isinstance(x, pl.DataFrame):
+        out = from_polars(x)
+    elif isinstance(x, dict):
+        out = tibble(x)
+    else:
+        out = pl.from_dataframe(x)
+    return out
+
 def from_polars(df):
     """
     Convert from polars DataFrame to tibble

From 32d8c93822404a6e013f6449b4e6d3ac4a206ea5 Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:31:56 -0600
Subject: [PATCH 3/6] Add `is_tibble()`

---
 tidypolars/tibble_df.py | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/tidypolars/tibble_df.py b/tidypolars/tibble_df.py
index 8ff9224..ae3f3ac 100644
--- a/tidypolars/tibble_df.py
+++ b/tidypolars/tibble_df.py
@@ -16,6 +16,7 @@
 
 __all__ = [
     "as_tibble",
+    "is_tibble",
     "tibble",
     "desc",
     "from_pandas", "from_polars"
@@ -961,6 +962,18 @@ class DescCol(pl.Expr):
     pass
 
 def as_tibble(x):
+    """
+    Convert an object to a tibble
+
+    Parameters
+    ----------
+    x : [pl.DataFrame, pd.DataFrame, dict]
+        Object to convert to a tibble
+
+    Examples
+    --------
+    >>> tp.as_tibble(polars_df)
+    """
     if isinstance(x, pl.DataFrame):
         out = from_polars(x)
     elif isinstance(x, dict):
@@ -969,6 +982,20 @@ def as_tibble(x):
         out = pl.from_dataframe(x)
     return out
 
+def is_tibble(x):
+    """
+    Is an object to a tibble
+
+    Parameters
+    ----------
+    x : object
+
+    Examples
+    --------
+    >>> tp.is_tibble(df)
+    """
+    return isinstance(x, tibble)
+
 def from_polars(df):
     """
     Convert from polars DataFrame to tibble

From 873545337eeb1eeac1b59813c79440aaac43612c Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:32:05 -0600
Subject: [PATCH 4/6] Add tests

---
 tests/test_tibble.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/test_tibble.py b/tests/test_tibble.py
index db2c7b3..e5f04f3 100644
--- a/tests/test_tibble.py
+++ b/tests/test_tibble.py
@@ -463,3 +463,12 @@ def test_funs_in_a_row():
     df.tail()
     df.arrange('x', 'y')
     assert True, "Functions in a row failed"
+
+def test_conversion():
+    """Can convert"""
+    df = tp.tibble(a = ["a", "a", "a"], b = ["b", "b", "b"], c = range(3))
+    actual = df.as_polars()
+    expected = pl.DataFrame(dict(a = ["a", "a", "a"], b = ["b", "b", "b"], c = range(3)))
+    assert actual.equals(expected), "as_polars failed"
+    assert tp.is_tibble(df) == True, "is_tibble failed"
+    assert tp.as_tibble(actual).equals(df), "as_tibble failed"

From 1e38d0d9f5544c92e7a55638588fcbd3e50a311c Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:32:11 -0600
Subject: [PATCH 5/6] Update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d175892..c094d87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
 #### New functions
 
 * `as_tibble()`
+* `is_tibble()`
 * `where()`
 
 ## v0.2.19

From 946dc190d7321394875db14bb5fe3f012fe73f48 Mon Sep 17 00:00:00 2001
From: markfairbanks <mark.t.fairbanks@gmail.com>
Date: Mon, 23 Sep 2024 02:34:22 -0600
Subject: [PATCH 6/6] `as_tibble()` leaves tibbles alone

---
 tidypolars/tibble_df.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tidypolars/tibble_df.py b/tidypolars/tibble_df.py
index ae3f3ac..bdd2391 100644
--- a/tidypolars/tibble_df.py
+++ b/tidypolars/tibble_df.py
@@ -978,6 +978,8 @@ def as_tibble(x):
         out = from_polars(x)
     elif isinstance(x, dict):
         out = tibble(x)
+    elif is_tibble(x):
+        out = x
     else:
         out = pl.from_dataframe(x)
     return out